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DATA SHEET
SKY77500 iPACTM FEM for Quad-Band GSM / GPRS
Applications
* Quad-band cellular handsets comprised of - Class 4 GSM850/900 - Class 1 DCS1800 PCS1900 - Class 12 GPRS multi-slot operation
Description
The SKY77500 is a transmit and receive Front End Module (FEM) designed in a low profile (1.2 mm), compact form factor for quad-band cellular handsets comprising GSM850/900, DCS1800, and PCS1900 operation--a complete transmit VCO-to-Antenna and Antenna-to-receive SAW filter solution. The FEM also supports Class 12 General Packet Radio Service (GPRS) multi-slot operation. The module consists of separate GSM850/900 and DCS1800/PCS1900 PA blocks, internal circuitry for matching to 50 input and output impedances, TX harmonics filtering, high linearity and low insertion loss PHEMT RF switches, diplexer, and an integrated power amplifier control (iPACTM) function that utilizes an internal current-sense resistor. A custom silicon integrated circuit contains decoder circuitry to control the RF switches while providing a low current external control interface. Two Heterojunction Bipolar Transistor (HBT) PA blocks are fabricated onto a single Gallium Arsenide (GaAs) die; one supports the GSM850/900 bands and the other supports the DCS1800 and PCS1900 bands. Both PA blocks share common power supply pins to distribute current. The output of each PA block and the outputs to the four receive pins are connected to the antenna pin through PHEMT RF switches and a diplexer. The GaAs die, PHEMT dies, Silicon (Si) die, and passive components are mounted on a multi-layer laminate substrate. The assembly is encapsulated with plastic overmold. Band selection and control of transmit and receive RF signal flows are performed by use of three external control pins. See Figure 1 shown below. Two band select pins select GSM, DCS or PCS modes of operation and the TX_RX pin selects the receive or transmit mode of the respective RF switch (TX = logic 1). Proper timing of the logic on this pin, PAC Enable, and Analog Power Control (APC) allow for high isolation between the antenna and TX-VCO while the VCO is being tuned prior to the transmit burst. The PAC Enable input allows initial turn-on of the PAC circuitry to minimize battery drain.
Features
* High efficiency - GSM850 43% - GSM900 43% - DCS 40% - PCS 40% * Internal ICC sense-resistor for iPAC * Closed loop iPAC or open loop operation with external PAC circuit * Input/Output matching 50 ohms internal (with DC blocking) * TX-VCO-to-antenna and antenna-to-RX-SAW filter RF interface * TX harmonics below -33 dBm* * PHEMT RF switches afford high linearity, low insertion loss and less than 20 A supply current in receive modes * Small outline - 8 mm x 10 mm * Low profile - 1.2 mm maximum * Low APC current: - 20 A * Gold plated, lead free contacts * High impedance control inputs, 15 A, typical
Figure 1. Functional Block Diagram
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
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1
DATA SHEET * SKY77500
IPACTM FEM FOR QUAD-BAND GSM / GPRS
Electrical Specifications
This section contains the following tables for the electrical characteristics of the SKY77500 Power Amplifier Module. The absolute maximum ratings and recommended operating conditions for the SKY77500 are listed in Table 1 and Table 2, respectively. Table 3 specifies the mode control logic and Table 4 contains the electrical characteristics of the SKY77500 for the modes, GSM850, GSM900, DCS1800, and PCS1900. Figure 2 is a diagram of a typical SKY77500 application. The SKY77500 is a static-sensitive electronic device and should not be stored or operated near strong electrostatic fields. Detailed information on device dimensions, pin descriptions, packaging and handling can be found in later sections of this data sheet.
Table 1. Absolute Maximum Ratings
Parameter Input Power (PIN) Supply Voltage (VCC), Standby, VAPC 0.3 V, PAC ENABLE 0.2 V Control Voltage (VAPC) Storage Temperature Minimum -- -- -0.5 -55 Maximum 15 7 VCC_MAX - 0.2 (See Table 4) +150 Unit dBm V V C
Table 2. Recommended Operating Conditions
Parameter Supply Voltage (VCC) Supply Current (ICC) Operating Case Temperature (TCASE) -Bottom Surface of Package 1-Slot (12.5% duty cycle) 2-Slot (25.0% duty cycle) 3-Slot (37.5% duty cycle) 4-Slot (50.0% duty cycle) -20 -20 -20 -20 -- -- -- -- +100 +100 +85 +85 C Minimum 2.9 0 Typical 3.5 -- Maximum 4.8V (1) 2.5 (1) Unit V A
(1) In open loop operation: For charging conditions with VCC > 4.8 V, derate ICC linearly down to 0.5 A, maximum, at VCC = 5.5 V.
Table 3. Mode Control Logic
Input Control Bits Mode TX_RX GSM_RX1/STANDBY GSM_RX2 DCS_RX1 DCS_RX2 GSM_TX DCS_TX
(1) X = don't care
BS1 0 0 1 1 0 1
BS2 0 1 0 1 X (1) X (1)
0 0 0 0 1 1
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iPACTM FEM FOR QUAD-BAND GSM / GPRS
DATA SHEET * SKY77500
Table 4. SKY77500 Electrical Specifications (1) (1 of 9)
General Parameter Supply voltage Power control impedance PAC ENABLE control voltage PAC ENABLE current (6) Band Select control voltage Band Select current (6) TX_RX control voltage TX_RX current (6) Standby Mode Leakage current Receive Mode Closed Loop VAPC Input Filter Bandwidth Closed Loop VAPC Threshold Open Loop (4) VAPC Enable Threshold IQRX VAPC FBW VAPC THCL VAPC THOL Low High Low High Low High VCC ZAPC VPE VPE IPE VBS1, VBS2 VBS1, VBS2 IBS1, IBS2 VTX_RX VTX_RX ITX_RX IQS VCC = 3.5 V VAPC 0.3 V PAC ENABLE 0.2 V TCASE = +25 C PIN -60 dBm -- -- -- VPE 3.0 V -- -- VBS1 3.0 V, VBS2 3.0 V -- -- -- Symbol Test Condition -- -- -- -- Min. 2.9 85 -0.1 2.0 -- -0.1 2.0 -- -0.1 2.0 -- -- Typ. 3.5 100 -- -- -- -- -- -- -- -- -- 10 Max. 4.8 115 0.5 VCC 30 0.5 VCC 30 0.5 VCC 30 30 A -- 95 400 200 15 135 420 -- -- 170 460 800 kHz mV mV Units V k V A V A V A
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DATA SHEET * SKY77500
IPACTM FEM FOR QUAD-BAND GSM / GPRS
Table 4. SKY77500 Electrical Specifications (1) (2 of 9)
GSM850 Mode (f = 824 to 849 MHz and PIN = 0 to 6 dBm) Parameter Frequency range Input power Analog power control voltage f PIN VAPC VCC = 3.5 V POUT = 33 dBm PAC ENABLE > 2.0 V pulse width 577 s duty cycle 1:8 TCASE = +25 C BW = 3 MHz 5 dBm POUT 33 dBm VCC = 3.5 V TCASE = +25 C VCC = 2.9 V PAC ENABLE > 2.0 V TCASE = -20 C to +100 C (See Table 2 for multislot.) PIN = 0 dBm VCC = 4.8 V PAC ENABLE > 2.0 V TCASE = -20 C to +100 C (See Table 2 for multislot.) PIN = 0 dBm POUT = 5 to 33 dBm, controlled by VAPC PIN = 6 dBm VAPC 0.3 V PAC ENABLE 2.0 V TX_RX 0.5 V Mode = GSM_RX (See Table 3) PIN = 6 dBm VAPC 0.3 V PAC ENABLE 0.2 V TX_RX 0.2 V Mode = GSM_RX (See Table 3) PIN = 6 dBm VAPC 0.3 V PAC ENABLE 2.0V TX_RX 2.0 V Mode = GSM_TX (See Table 3) 5 dBm POUT +33 dBm Mode = GSM_TX (See Table 3) 5 dBm POUT +33 dBm Mode = GSM_TX (See Table 3) Symbol Test Condition -- -- -- Min. 824 0 0.4 Typ. -- -- -- Max. 849 6 2.1 Units MHz dBm V
Power Added Efficiency
PAE
39
43
--
%
2nd to 13th harmonics
2fO to 13fO POUT
-- 33.0
-45 34.0
-33 --
dBm
POUT MAX LOW VOLTAGE Output power
30.5
32.0
-- dBm
POUT MAX HIGH VOLTAGE
30.5
36.5
--
Input VSWR
IN
--
1.5:1
2:1
--
POUT ENABLED_RX
--
-40
-20
Forward isolation (5)
POUT STANDBY
--
-60
-39
dBm
POUT ENABLED_TX
--
-25
0
Coupling of GSM850 TX output (fO) to GSM_RX CGLOTX-RX_Fo output pins (5) Coupling of GSM850 TX output (2fO, 3fO) to DCS_RX output pins CGLOTX-DCSRX
-- --
5 -80
+11 -70
dBm dBc
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iPACTM FEM FOR QUAD-BAND GSM / GPRS
DATA SHEET * SKY77500
Table 4. SKY77500 Electrical Specifications (1) (3 of 9)
GSM850 Mode (f = 824 to 849 MHz and PIN = 0 to 6 dBm) [continued] Parameter Symbol Test Condition Time from POUT = -10 dBm to within 0.5 dB of POUT = +5 dBm Open Loop (4) Switching time RISE Time from POUT = -10 dBm to within 0.5 dB of POUT = +20.0 dBm Time from POUT = -10 dBm to within 0.5 dB of POUT = +33 dBm All combinations of the following parameters: VAPC = controlled (2) PIN = min. to max. VCC = 2.9 V to 4.8 V Load VSWR = 12:1, all phase angles All combinations of the following parameters: VAPC = controlled (2) PIN = min. to max. VCC = 2.9 V to 4.8 V Load VSWR = 20:1, all phase angles At fO + 20 MHz (869 to 894 MHz) RBW = 100 kHz VCC = 3.5 V TCASE = +25 C 5 dBm POUT 33 dBm At 1930 to 1990 MHz RBW = 100 kHz VCC = 3.5 V TCASE = +25 C 5 dBm POUT 33 dBm Power control dynamic range Power control variation Power control slope Closed loop bandwidth Loop phase margin Control level 7-15 (3.2 V VCC 4.5 V) Control level 16-19 PCS BCL PM PCDR -- POUT +13 to +33 dBm, +25 C POUT +13 to +33 dBm POUT +5 to +11 dBm, +25 C POUT +5 to +11 dBm 5 to 33 dBm VAPC = 1.0 V VAPC = 1.0 V GSM850 RECEIVE (f = 869 TO 894 MHz) Mode = GSM_RX Frequency range Insertion Loss, ANT-to-GSM_RX (5) VSWR ANT, GSM_RX (5) f IL GSM_RX IN, OUT TCASE = +25 C -- -- 869 -- -- -- 1.1 1.3:1 894 1.3 1.5:1 MHz dB Min. -- -- -- Typ. 1.2 1.0 1.4 Max. 4.0 2.5 3.0 s Units
Spurious
Spur
No parasitic oscillation > -36 dBm
Load mismatch
Load
No module damage or permanent degradation
--
-86
-83 dBm
RX Band Spurious
RX_SPUR
--
--
-84
30 -1.0 -1.5 -1.7 -2.0 -- -- 50
50 -- -- -- -- -- 700 65 +1.0 +1.5 +1.7 +2.0 300 -- --
dB
PCV
dB
dB/V kHz deg.
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DATA SHEET * SKY77500
IPACTM FEM FOR QUAD-BAND GSM / GPRS
Table 4. SKY77500 Electrical Specifications (1) (4 of 9)
GSM900 Mode (f = 880 to 915 MHz and PIN = 0 to 6 dBm) Parameter Frequency range Input power Analog power control voltage F PIN VAPC Symbol Test Condition -- -- -- VCC = 3.5 V POUT = 33 dBm PAC ENABLE > 2.0 V pulse width 577 s duty cycle 1:8 TCASE = +25 C BW = 3 MHz 5 dBm POUT 33 dBm VCC = 3.5 V TCASE = +25 C VCC = 2.9 V PAC ENABLE > 2.0 V TCASE = -20 C to +100 C (See Table 2 for multislot.) PIN = 0 dBm VCC = 4.8 V PAC ENABLE > 2.0 V TCASE = -20 C to +100 C (See Table 2 for multislot.) PIN = 0 dBm POUT = 5 to 33 dBm controlled by VAPC PIN = 6 dBm VAPC 0.3 V PAC ENABLE 2.0 V TX_RX 0.5 V Mode = GSM_RX (See Table 3) PIN = 6 dBm VAPC 0.3 V PAC ENABLE 0.2 V TX_RX 0.2 V Mode = GSM_RX (See Table 3) PIN = 6 dBm VAPC 0.3 V PAC ENABLE 2.0 V TX_RX 2.0 V Mode = GSM_TX (See Table 3) 5 dBm POUT +33 dBm Mode = GSM_TX (See Table 3) 5 dBm POUT +33 dBm Mode = GSM_TX (See Table 3) Time from POUT = -10 dBm to within 0.5 dB of POUT = +5 dBm Open Loop (4) Switching time RISE Time from POUT = -10 dBm to within 0.5 dB of POUT = +20.0 dBm Time from POUT = -10 dBm to within 0.5 dB of POUT = +33 dBm Min. 880 0 0.4 Typ. -- -- -- Max. 915 6 2.1 Units MHz dBm V
Power Added Efficiency
PAE
39
43
--
%
2nd to 13th harmonics
2fO TO 13fO POUT
-- 33.0
-45 33.7
-33 --
dBm
POUT MAX LOW VOLTAGE Output power
30.5
32.0
-- dBm
POUT MAX HIGH VOLTAGE
30.5
36.0
--
Input VSWR
IN
--
1.5:1
2:1
--
POUT ENABLED_RX
--
-45
-20
Forward isolation (5)
POUT STANDBY
--
-65
-39
dBm
POUT ENABLED_TX Coupling of GSM900 TX output (fo) to GSM_RX CGHITX_RX_FO output pins (5) Coupling of GSM900 TX output (2fo, 3fo) to DCS_RX output pins CGHITX-DCSRX
--
-25
0
-- -- -- -- --
6 -80 1.2 1.0 1.4
+11 -70 4.0 2.5 3.0
dBm dBc
s
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iPACTM FEM FOR QUAD-BAND GSM / GPRS
DATA SHEET * SKY77500
Table 4. SKY77500 Electrical Specifications (1) (5 of 9)
GSM900 Mode (f = 880 to 915 MHz and PIN = 0 to 6 dBm) [continued] Parameter Symbol Test Condition All combinations of the following parameters: VAPC = controlled (2) PIN = min. to max. VCC = 2.9 V to 4.8 V Load VSWR = 12:1, all phase angles All combinations of the following parameters: VAPC = controlled (2) PIN = min. to max. VCC = 2.9 V to 4.8 V Load VSWR = 20:1, all phase angles At fO + 20 MHz (935 to 960 MHz) RBW = 100 kHz VCC = 3.5 V 5 dBm POUT 33 dBm TCASE = +25 C At fO + 10 MHz (925 TO 935 MHz) RBW = 100 kHz VCC = 3.5 V 5 dBm POUT 33 dBm TCASE = +25 C At 1805 to 1880 MHz RBW = 100 kHz VCC = 3.5 V 5 dBm POUT 33 dBm TCASE = +25 C Power control dynamic range Power control variation Power control slope Closed loop bandwidth Loop phase margin Control level 5-15 (3.2 V VCC 4.5 V) Control level 16-19 PCS BCL PM PCDR -- POUT +13 to +33 dBm, +25 C POUT +13 to +33 dBm POUT +5 to +11 dBm, +25 C POUT +5 to +11 dBm 5 to 33 dBm VAPC = 1.0 V VAPC = 1.0 V GSM900 RECEIVE (f = 925 to 960 MHz) MODE = GSM_RX Frequency range Insertion Loss, ANT-to-GSM_RX (5) VSWR ANT, GSM_RX (5) f IL GSM_RX IN, OUT TCASE = +25 C -- -- 925 -- -- -- 1.1 1.2:1 960 1.3 1.5:1 MHz dB Min. Typ. Max. Units
Spurious
Spur
No parasitic oscillation > -36 dBm
Load mismatch
Load
No module damage or permanent degradation
--
-88
-84
RX Band Spurious
RX_SPUR
--
-86
-76
dBm
--
--
-84
30 -1.0 -1.5 -1.7 -2.0 -- -- 50
50 -- -- -- -- -- 700 65
-- +1.0 +1.5 +1.76 +2.0 300 -- --
dB
PCV
dB
dB/V kHz deg.
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DATA SHEET * SKY77500
IPACTM FEM FOR QUAD-BAND GSM / GPRS
Table 4. SKY77500 Electrical Specifications (1) (6 of 9)
DCS1800 Mode (f = 1710 to 1785 MHz and PIN = 0 to 6 dBm) Parameter Frequency range Input power Analog power control voltage f PIN VAPC VCC = 3.5 V POUT = 30 dBm PAC ENABLE > 2.0 V pulse width 577 s duty cycle 1:8 TCASE = +25 C BW = 3 MHz, 0 dBm POUT 30 dBm VCC = 3.5 V TCASE = +25 C VCC = 2.9 V PAC ENABLE > 2.0 V TCASE = -20 C to +100 C (See Table 2 for multislot.) PIN = 0 dBm VCC = 4.8 V PAC ENABLE > 2.0 V TCASE = -20 C to +100 C (See Table 2 for multislot.) PIN = 0 dBm POUT = 0 to 30 dBm controlled by VAPC PIN = 6 dBm VAPC 0.3 V PAC ENABLE 2.0 V TX_RX 0.5 V Mode = DCS_RX (See Table 3) PIN = 6 dBm VAPC 0.3 V PAC ENABLE 0.2 V TX_RX 0.2 V Mode = DCS_RX (See Table 3) PIN = 6 dBm VAPC 0.3 V PAC ENABLE 2.0 V TX_RX 2.0 V Mode = DCS_TX (See Table 3) Measured at all RX outputs 0 dBm POUT +30 dBm Mode = DCS_TX (See Table 3) Time from POUT = -10 dBm to within 0.5 dB of POUT = 0 dBm Open Loop (4) Switching time RISE Time from POUT = -10 dBm to within 0.5 dB of POUT = +20.0 dBm Time from POUT = -10 dBm to within 0.5 dB of POUT = +30 dBm Symbol Test Condition -- -- -- Min. 1710 0 0.4 Typ. -- -- -- Max. 1785 6 2.1 Units MHz dBm V
Power Added Efficiency
PAE
35
40
--
%
2nd to 7th harmonics
2fO to 7fO POUT
-- 30.0
-45 31.0
-33 --
dBm
POUT MAX LOW VOLTAGE Output power
27.5
29.5
-- dBm
POUT MAX HIGH VOLTAGE
27.5
33.5
--
Input VSWR
IN
--
1.5:1
2:1
--
POUT ENABLED_RX
--
-60
-23
Forward isolation (5)
POUT STANDBY
--
-60
-50
dBm
POUT ENABLED_TX
--
-35
-5
Coupling of DCS TX output to Receive RF output pins (5)
CDCSTX-RX_fO
--
3
3
dBm
-- -- --
0.5 0.8 1.2
3.0 1.1 1.5 s
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iPACTM FEM FOR QUAD-BAND GSM / GPRS
DATA SHEET * SKY77500
Table 4. SKY77500 Electrical Specifications (1) (7 of 9)
DCS1800 Mode (f = 1710 to 1785 MHz and PIN = 0 to 6 dBm) [continued] Parameter Symbol Test Condition All combinations of the following parameters: VAPC = controlled (3) PIN = min. to max. VCC = 2.9 V to 4.8 V Load VSWR = 12:1, all phase angles All combinations of the following parameters: VAPC = controlled (3) PIN = min. to max. VCC = 2.9 V to 4.8 V Load VSWR = 20:1, all phase angles At fO + 20 MHz (1805 to 1880 MHz) RBW = 100 kHz VCC = 3.5 V 0 dBm POUT 30 dBm TCASE = +25 C At 925 to 960 MHz RBW = 100 kHz VCC = 3.5 V 0 dBm POUT 30 dBm TCASE = +25 C Power control dynamic range Control level 0-8 (3.2 V VCC 4.5 V) Power control variation Control level 9-13 Control level 14-15 Power control slope Closed loop bandwidth Loop phase margin PCS BCL PM PCV PCDR -- POUT +14 to +30 dBm, +25 C POUT +14 to +30 dBm POUT +4 to +12 dBm, +25 C POUT +4 to +12 dBm POUT 0 to +2 dBm, +25 C POUT 0 to +2 dBm 0 to 30 dBm VAPC = 1.0 V VAPC = 1.0 V DCS 1800 RECEIVE (f = 1805 to 1880 MHz) Mode = DCS_RX Frequency range Insertion Loss, ANT-to-DCS_RX (5) VSWR ANT, DCS_RX (5) f IL DCS_RX IN, OUT TCASE = +25 C -- -- 1805 -- -- -- 1.3 1.2:1 1880 1.5 1.5:1 MHz dB Min. Typ. Max. Units
Spurious
Spur
No parasitic oscillation > -36 dBm
Load mismatch
Load
No module damage or permanent degradation
--
-90
-80 dBm
Rx Band Spurious
RX_SPUR
--
--
-87
35 -1.0 -1.8 -1.9 -3.3 -3.0 -4.5 -- -- 75
50 -- -- -- -- -- -- -- 500 --
-- +1.0 +1.8 +1.9 +3.3 +3.0 +4.5 500 -- --
dB
dB
dB/V kHz deg.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
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DATA SHEET * SKY77500
IPACTM FEM FOR QUAD-BAND GSM / GPRS
Table 4. SKY77500 Electrical Specifications (1) (8 of 9)
PCS1900 Mode (f = 1850 to 1910 MHz and PIN = 0 to 6 dBm) Parameter Frequency range Input power Analog power control voltage f PIN VAPC Symbol Test Condition -- -- -- VCC = 3.5 V POUT = 30 dBm PAC ENABLE > 2.0 V pulse width 577 s duty cycle 1:8 TCASE = +25 C BW = 3 MHz 0 dBm POUT 30 dBm VCC = 3.5 V TCASE = +25 C VCC = 2.9 V PAC ENABLE > 2.0 V TCASE = -20 C to +100 C (See Table 2 for multislot.) PIN = 0 dBm VCC = 4.8 V PAC ENABLE > 2.0 V TCASE = -20 C to +100 C (See Table 2 for multislot.) PIN = 0 dBm POUT = 0 to 30 dBm controlled by VAPC PIN = 6 dBm VAPC 0.3 V PAC ENABLE 2.0 V TX_RX 0.5 V Mode = DCS_RX (See Table 3) PIN = 6 dBm VAPC 0.3 V PAC ENABLE 0.2 V TX_RX 0.2 V Mode = DCS_RX (See Table 3) PIN = 6 dBm VAPC 0.3 V PAC ENABLE 2.0 V TX_RX 2.0 V Mode = DCS_TX (See Table 3) Measured at all RX outputs 0 dBm POUT +30 dBm Mode = DCS_TX (See Table 3) Time from POUT = -10 dBm to within 0.5 dB of POUT = 0 dBm Open Loop (4) Switching time RISE Time from POUT = -10 dBm to within 0.5 dB of POUT = +20 dBm Time from POUT = -10 dBm to within 0.5 dB of POUT = +30 dBm Min. 1850 0 0.4 Typ. Max. 1910 6 2.1 Units MHz dBm V
Power Added Efficiency
PAE
35
40
--
%
2nd to 7th harmonics
2fO to 7fO POUT
-- 30.0
-40 31.0
-33 --
dBm
POUT MAX LOW VOLTAGE Output power
27.5
29.5
-- dBm
POUT MAX HIGH VOLTAGE
27.5
33.5
--
Input VSWR
IN
--
1.5:1
2.2:1
--
POUT ENABLED_RX
--
-65
-23
Forward isolation (5)
POUT STANDBY
--
-65
-50
dBm
POUT ENABLED_TX
--
-35
-5
Coupling of PCS TX output to Receive RF output pins (5)
CPCSTX-RX_fO
--
3
3
dBm
-- -- --
0.5 0.8 1.2
3.0 1.1 1.5 s
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iPACTM FEM FOR QUAD-BAND GSM / GPRS
DATA SHEET * SKY77500
Table 4. SKY77500 Electrical Specifications (1) (9 of 9)
PCS1900 Mode (f = 1850 to 1910 MHz and PIN = 0 to 6 dBm) [continued] Parameter Symbol Test Condition All combinations of the following parameters: VAPC = controlled (3) PIN = min. to max. VCC = 2.9 V to 4.8 V Load VSWR = 12:1, all phase angles All combinations of the following parameters: VAPC = controlled (3) PIN = min. to max. VCC = 2.9 V to 4.8 V Load VSWR = 20:1, all phase angles At fO + 20 MHz (1930 to 1990 MHz) RBW = 100 kHz VCC = 3.5 V 0 dBm POUT 30 dBm TCASE = +25 C At 869 to 894 MHz RBW = 100 kHz VCC = 3.5 V 0 dBm POUT 30 dBm TCASE = +25 C Power control dynamic range Control level 0-8 (3.2 V VCC 4.5 V) Power control variation Control level 9-13 Control level 14-15 Power control slope Closed loop bandwidth Loop phase margin PCS BCL PM PCV PCDR VCC = 3.5 V POUT +14 to +30 dBm, +25 C POUT +14 to +30 dBm POUT +4 to +12 dBm, +25 C POUT +4 to +12 dBm POUT 0 to +2 dBm, +25 C POUT 0 to +2 dBm 0 to 30 dBm VAPC = 1.0 V VAPC = 1.0 V PCS 1900 RECEIVE (f = 1930 to 1990 MHz) Mode = DCS_RX Frequency range Insertion Loss, ANT-to-DCS_RX (5) VSWR ANT, DCS_RX (5)
(1) Unless specified otherwise: TCASE = -20 C to max. operating temperature (see Table 2), RL = 50 , pulsed operation with pulse width 1154 s and duty cycle 2:8, VCC = 2.9 V to 4.8 V. (2) ICC = 0A to xA, where x = current at POUT = 33 dBm, 50 load, and VCC = 3.5 V. (3) ICC = 0A to xA, where x = current at POUT = 30 dBm, 50 load, and VCC = 3.5 V. (4) This device has an Open Loop mode that allows bypassing the internal PAC circuitry. See the Technical Information section at end of this document for further information. (5) Terminate all unused RF ports with 50 load. (6) BS_1, BS_2, TX_RX, and PAC_EN inputs have active 200 k pulldowns to ground.
Min.
Typ.
Max.
Units
Spurious
Spur
No parasitic oscillation > -36 dBm
Load mismatch
Load
No module damage or permanent degradation
--
-89
-80
dBm
Rx Band Spurious
RX_SPUR
--
--
-87
35 -1.0 -1.8 -1.9 -3.3 -3.0 -4.5 -- -- 75
50 -- -- -- -- -- -- -- 500 --
-- +1.0 +1.8 +1.9 +3.3 +3.0 +4.5 550 -- --
dB dB
dB/V kHz deg.
f IL DCS_RX IN, OUT TCASE = +25 C
--
1930 --
-- 1.3 1.2:1
1990 1.5 1.5:1
MHz dB
--
--
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
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DATA SHEET * SKY77500
IPACTM FEM FOR QUAD-BAND GSM / GPRS
Figure 2. Typical SKY77500 FEM Application
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iPACTM FEM FOR QUAD-BAND GSM / GPRS
DATA SHEET * SKY77500
Package Dimensions and Pin Description
Figure 3 is a mechanical diagram of the pad layout for the SKY77500, a 32-pin leadless quad-band FEM module. Figure 4 provides a recommended phone board layout footprint for the FEM to help the designer attain optimum thermal conductivity, good grounding, and minimum RF discontinuity for the 50-ohm terminals. Figure 5 shows the device pin configuration and the pin numbering convention, which starts with pin 1 at the upper left, as indicated, and increments counter-clockwise around the package. Table 5 lists the pin names and signal descriptions. Typical case markings are shown in Figure 6.
Figure 3. SKY77500 FEM Package Dimensions - 32-pin Leadless (All Views)
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DATA SHEET * SKY77500
IPACTM FEM FOR QUAD-BAND GSM / GPRS
Figure 4. Phone PCB Layout Footprint for 8 x 10 mm, 32-Pin Package - SKY77500
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iPACTM FEM FOR QUAD-BAND GSM / GPRS
DATA SHEET * SKY77500
Table 5. Pin Names and Signal Descriptions
Pin 1 2 3 4 5 6 7 8 9-14 15 16 17 VCC1C PAC ENABLE VCC1A BS_1 DCS/PCS_IN GSM_IN GND VCC1B GND GSM_RX2 GND GSM_RX1 GND ANT GND DCS_RX2 GND DCS_RX1 VSENSE VBATT VAPC BS_2 TX_RX GROUND PAD Name Description VCC (to PAC and switch control) Closed loop PAC mode CMOS enable VCC (to GSM 1st stage, DCS 1st stages) Band Select 1 (mode control) RF input 1710-1910 MHz RF input 824-915 MHz RF and DC Ground VCC (to GSM 2nd stage, DCS 2nd stage) RF and DC Ground GSM Receive RF output, 869 to 960 MHz RF and DC Ground GSM Receive RF output, 869 to 960 MHz RF and DC Ground RF IN / RF OUT to Antenna RF and DC Ground DCS / PCS Receive RF output, 1805-1990 MHz RF and DC Ground DCS / PCS Receive RF output, 1805-1990 MHz Feedback voltage for current sense (DO NOT CONNECT THIS PIN ON CIRCUIT BOARD FOR CLOSED LOOP OPERATION.) Battery input voltage Power Control bias voltage input Band Select 2 (mode control) Transmit / Receive select (mode control) Ground Pad, bottom of package
Figure 5. SKY77500 FEM Package Pin Configuration - 32-pin Leadless (Top View)
18-20 21 22-24 25 26 27 28 29 30 31 32 (33)
Figure 6. Typical Case Markings
Package and Handling Information
Because of its sensitivity to moisture absorption, this device package is baked and vacuum-packed prior to shipment. Instructions on the shipping container label must be followed regarding exposure to moisture after the container seal is broken, otherwise, problems related to moisture absorption may occur when the part is subjected to high temperature during solder assembly. The SKY77500 is capable of withstanding an MSL 3/250 C solder reflow. Care must be taken when attaching this product, whether it is done manually or in a production solder reflow environment. If the part is attached in a reflow oven, the temperature ramp rate should not exceed 5 C per second; maximum temperature should not exceed 250 C. If the part is manually attached, precaution should be taken to insure that the part is not subjected to temperatures exceeding 250 C for more than 10 seconds. For details on attachment techniques, precautions, and handling procedures recommended by Skyworks, please refer to Application Note: PCB Design and SMT Assembly/Rework, Document Number 101752. Additional information on standard SMT reflow profiles can also be found in the JEDEC Standard J-STD-020B. Production quantities of this product are shipped in the standard tape-and-reel format. For packaging details, refer to Application Note: Tape and Reel, Document Number 101568.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
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DATA SHEET * SKY77500
IPACTM FEM FOR QUAD-BAND GSM / GPRS
Electrostatic Discharge Sensitivity
The SKY77500 is a Class I device. Figure 7 lists the Electrostatic Discharge (ESD) immunity level for each pin of the SKY77500 module. The numbers specify the ESD threshold levels for each pin where the I-V curve between the pin and ground starts to show degradation. ESD testing was performed in compliance with MIL-STD-883E Method 3015.7 using the Human Body Model. If ESD damage threshold magnitude is found to consistently exceed 2000 volts, this so is indicated. If ESD damage threshold below 2000 volts is measured for either polarity, numbers are indicated that represent worst case values observed in product characterization. Various failure criteria can be utilized when performing ESD testing. Many vendors employ relaxed ESD failure standards, which fail devices only after "the pin fails the electrical specification limits" or "the pin becomes completely nonfunctional". Skyworks' most stringent criteria fail devices as soon as the pin begins to show any degradation on a curve tracer. To avoid ESD damage, both latent and visible, it is very important that the product assembly and test areas follow the Class-1 ESD handling precautions listed in Table 6.
Table 6. Precautions for Handling GaAs IC based Products to Avoid ESD Induced Damage
Wrist Straps Conductive Smocks, Gloves and Finger Cots Antistatic ID Badges Relative Humidity Control and Air Ionizers Facility Dissipative Floors (less than 109 to GND) Dissipative Table Tops Protective Test Equipment (Properly Grounded) Protective Workstation Grounded Tip Soldering Irons Conductive Solder Suckers Static Sensors Bags and Pouches (Faraday Shield) Protective Tote Boxes (Conductive Static Shielding) Protective Packaging and Protective Trays Transportation Grounded Carts Protective Work Order Holders Personnel Grounding
Technical Information
Closed loop control of the amplifier is enabled when PAC ENABLE is driven to logic high. The FEM PA collector current will then be directly proportional to the VAPC input voltage over the range of 400 mV to 2.1 V. To meet the GSM power versus time mask and switching transient requirements the FEM must be provided with a DAC ramp profile on the VAPC input as well as proper timing on digital controls for the PAC circuitry and transmit/receive switches. Note: Please refer to 3GPP TS 51.010-1: Mobile Station (MS) conformance specification. All GSM specifications are now the responsibility of 3GPP. The standards are available at http://www.3GPP.org. The SKY77500 has been designed to comply with interface requirements and DAC resolution of leading base band devices. The ramp profile typically consists of a pedestal voltage, 10-16 discrete voltage steps on the rising edge of the burst, a constant region, 10-16 steps on the falling edge, and a final voltage. Typically, the user defines the start, stop, and 10-16 percentage values for each rising and falling edge, which are then applied as discrete voltages at the VAPC input. For the SKY77500, generally the same profile, scaled in amplitude, is used for all frequencies and power control levels. The ultimate purpose is to keep the RF output power ramp within the time mask and to maintain acceptable spectral limits at specified offset frequencies. The VAPC input has an internal reconstruction filter such that external resistors or capacitors are unnecessary on the phone board or the test fixture. Figure 8 represents the dynamic characteristics of the RF output burst power that results from the ramp profile delivered by the DAC to the VAPC input. The transmit power must not exceed the
Figure 7. ESD Sensitivity Areas (Top View)
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iPACTM FEM FOR QUAD-BAND GSM / GPRS
DATA SHEET * SKY77500
given limits at the time specified relative to the start and end of the data burst. Additional requirements are placed on spectral components generated by switching transients. Ramping at high rates will result in components that violate these spectral limits. A ramp control signal must be applied to the VAPC pin, which results in the desired power ramp response. The log relationship of VAPC to POUT, along with the finite bandwidth and potential slew rate limitations of the feedback loop, results in a complex mapping of the ramp profile to the actual output power. Careful attention is required in generating the input waveform which results in the desired output response. Figure 9 shows an example of the Skyworks FEM test setup for evaluation of RF performance with various ramp profiles.
Open Loop Control Mode
With PAC ENABLE at logic low, the voltage applied to VAPC is buffered and applied directly to the bases of the RF devices. This mode of operation provides backward compatibility with the existing amplifier designs and allows for various test scenarios. As with previous designs, an active clamp acts as a protection mechanism limiting the maximum voltage that can be applied to the base of the RF devices. This clamp voltage decreases with increasing supply voltage. The enable threshold on the VAPC input for open loop operation exhibits a wide tolerance, which may vary from 200 mV to 800 mV. When enabled in Open Loop mode, the internal PAC circuitry (V-I converter and integrator) is placed in standby.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
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DATA SHEET * SKY77500
IPACTM FEM FOR QUAD-BAND GSM / GPRS
Figure 8. Example of FEM Recommended Timing Diagram
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iPACTM FEM FOR QUAD-BAND GSM / GPRS
DATA SHEET * SKY77500
Figure 9. FEM Evaluation Test Setup - CMOS
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
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Ordering Information
Model Number SKY77500 Manufacturing Part Number SKY77500 Product Revision Package MCM 8 x 10 x 1.2 mm Operating Temperature -20 C to +100 C
Revision History
Revision A Level Date May 16, 2005 Initial Release Description
References
Application Note: Tape and Reel - RF Modules, Document Number 101568. Application Note: PCB Design and SMT Assembly/Rework, Document Number 101752 Application Brief: iPACTM - GSM Transmitter Timing, Calibration and Baseband Control, Document Number 103138 Application Note: iPACTM Peak Output Power Calibration, Document Number 103180 Application Note: SKY77500 iPACTM FEM Quad-Band GSM / GPRS Applications, Document Number 103164 User Guide: iPACTM Test and Control - Baseband Emulator Interface, Document Number 103125 JEDEC Standard J-STD-020 3GPP TS 51.010-1; Mobile Station (MS) Conformance Specification
(c) 2003-2005, Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. ("Skyworks") products. These materials are provided by Skyworks as a service to its customers and may be used for informational purposes only. Skyworks assumes no responsibility for errors or omissions in these materials. Skyworks may make changes to its products, specifications and product descriptions at any time, without notice. Skyworks makes no commitment to update the information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from future changes to its products and product descriptions. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as may be provided in Skyworks' Terms and Conditions of Sale for such products, Skyworks assumes no liability whatsoever. THESE MATERIALS ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, RELATING TO SALE AND/OR USE OF SKYWORKSTM PRODUCTS INCLUDING WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. SKYWORKS FURTHER DOES NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE MATERIALS. SKYWORKS SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM THE USE OF THESE MATERIALS. SkyworksTM products are not intended for use in medical, lifesaving or life-sustaining applications. Skyworks' customers using or selling SkyworksTM products for use in such applications do so at their own risk and agree to fully indemnify Skyworks for any damages resulting from such improper use or sale. The following are trademarks of Skyworks Solutions, Inc.: SkyworksTM, the Skyworks symbol, and "Breakthrough Simplicity"TM. Product names or services listed in this publication are for identification purposes only, and may be trademarks of third parties. Third-party brands and names are the property of their respective owners. Additional information, posted at www.skyworksinc.com, is incorporated by reference.

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