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| ICs for Mobile Communication AN8539SH 300 MHz-band single PLL IC s Overview The AN8539SH is a 300 MHz-band, 2nd local OSC PLL IC designed for a cellular phone which allows IF switching to high or low. 0.5 1 10 Unit: mm 0.20.1 * Cellular phone 0.50.2 4.30.30 6.30.30 SSOP010-P-0225 s Block Diagram SELECT REF VCC 10 LD 9 8 7 Lock detection 14-bit R counter 15-bit N counter Phase comparator 1/16, 1/17 prescaler Selector 2 3 4 CPSUB 1 CP GND IFIN PS 5 6 SW 0.15+0.1 -0.05 s Applications 0.6250.10 1.50.2 * To be switched to two frequencies. (Select by SELECT pin.) * Analog SW built-in * ICC = 900 A 0.10.1 0.6250.10 s Features 5 6 3.00.30 1 AN8539SH s Pin Descriptions Pin No. 1 2 3 4 5 6 7 8 9 10 Symbol CPSUB CP GND IFIN PS SW VCC REF SELECT LD Description Sub charge pump output Charge pump output GND pin IF input Power save control Sub charge pump control Power supply pin Reference frequency input IF frequency changeover control Lock detection output I/O O O I I I I I O ICs for Mobile Communication Level CMOS CMOS ECL CMOS CMOS ECL CMOS CMOS s Absolute Maximum Ratings Parameter Supply voltage Supply current Power dissipation *2 *1 Symbol VCC ICC PD Topr Tstg Rating 3.6 3.5 12.6 -30 to +85 -55 to +125 Unit V mA mW C C Operating ambient temperature Storage temperature *1 Note) *1: Except for the operating ambient temperature and storage temperature, all ratings are for Ta = 25C. *2: Ta = 85C s Recommended Operating Range Parameter Supply voltage Symbol VCC Range 2.55 to 3.3 Unit V s Electrical Characteristics at VCC = 2.7 V, fREFIN = 12.8 MHz, VREFIN = 0.6 V[p-p], Ta = 25C Parameter Consumption current 1 Consumption current 2 Reference signal input level High-level input voltage Low-level input voltage High-level input current Low-level input current Symbol ICC1 ICC2 VREFIN VIH VIL IIH IIL At VIH = 2.16 V applied At VIL = 0 V applied Conditions SELECT = high At 178 MHz lock Power save mode At PS = GND setting fREFIN = 12.8 MHz Min 0.5 2.16 0 -1 -1 Typ 0.90 0 0 0 Max 1.21 10 1.2 3.30 0.54 1 1 Unit mA A V[p-p] V V A A 2 ICs for Mobile Communication AN8539SH s Electrical Characteristics at VCC = 2.7 V, fREFIN = 12.8 MHz, VREFIN = 0.6 V[p-p], Ta = 25C (continued) * Design reference data at Ta = -30C to 80C Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. Parameter Consumption current 1 Consumption current 2 IF input level Reference signal input level Output leak current Charge pump output current 1 Charge pump output current 2 Symbol ICC1 ICC2 VIFIN VREFIN IOZ IOH IOL Conditions SELECT = high, at 178 MHz lock SELECT = low, at 129.55 MHz lock fIFIN = 100 MHz to 350 MHz fREFIN = 10 MHz to 25 MHz At VOZ = 0 V, 2.7 V applied At VOH = 2.16 V applied At VOL = 0.54 V applied Min - 10 0.5 - 1.0 Typ 0.90 0.83 Max 1.34 1.27 +2 1.2 +1.0 Unit mA mA dBm V[p-p] A mA mA - 0.67 - 0.48 - 0.30 0.32 0.51 0.72 s Terminal Equivalent Circuits Pin No. 1 2 Equivalent circuit Pin 1: CPSUB Pin 2: CP Description 2 CP 1 CPSUB SW 3 4 GND IFIN input 4 4.5 k 4.5 k 5 Pin 5 9 PS input 6 6 SW input 3 AN8539SH s Terminal Equivalent Circuits (continued) Pin No. 7 8 Equivalent circuit ICs for Mobile Communication Description VCC REF 10 k 8 9 10 Refer to pin 5 SELECT inpuit LD output 10 s Application Notes 1. Input level characteristics 1) IF input level characteristics Upper limit VCC = 2.55 V to 3.3V 10 Ta = -30C, 25C, 85C 0 Input level (dBm) -10 Lower limit -20 Ta = -30C -30 Ta = 85C Ta = 25C -40 50 100 150 200 250 300 350 Input frequency (MHz) 4 ICs for Mobile Communication s Application Notes (continued) 1. Input level characteristics (continued) 2) REF input level characteristics VCC = 2.55 V to 3.3V AN8539SH 20 Upper limit Ta = -30C, 25C, 85C 10 Input level (dBm) 0 Lower limit Ta = 25C -10 Ta = -30C -20 Ta = 85C -30 0 5 10 15 20 25 30 Input frequency (MHz) 2. Characteristics specification 1) IF select specification SELECT pin control enables you to switch IF as below: SELECT = low fOUT = 129.55 MHz, fR = 50 kHz (P = 16, N = 161, A = 15, R = 256) SELECT = high fOUT = 178 MHz, fR = 400 kHz (P = 16, N = 27, A = 13, R = 32) 2) Unlock detection and LD output specification LD output is high in a lock mode and low in an unlock mode. Lock signal is outputted in a power save mode. SELECT = high : Detection time is 2.6 s. About detection accuracy, when a dividing output shifts by (78 x 3) ns for fREF = 400 kHz, it generates an unlock output. SELECT = low : Detection time is 20 s. About detection accuracy, when a dividing output shifts by (78 x 3) ns for fREF = 50 kHz, it generates an unlock output. 3) Power save control specification When power save control pin (PS) is high, it is set to an operating mode. When it is low, it is set to power save mode. 4) Analog SW control specification CPSUB is controlled by SW pin. SW = low : CPSUB open SW = high: CPSUB operation 5) Other specification Set CMOS input pins, such as PS pin, SW pin, SELECT pin, etc., normally to VCC or GND. 5 AN8539SH s Application Circuit Example ICs for Mobile Communication fREFIN SELECT VCC LD 1 000 pF 1 000 pF 10 8 REF 9 7 Lock detection 14-bit R counter 15-bit N counter Phase comparator 1/16, 1/17 prescaler Selector 1 CP 2 GND 3 IFIN 4 CPSUB 1.8 k 4.7 k 0.056 F 1.5 k 6 800 pF 1 000 pF 47 fIFIN 1 000 pF fOUT VCO 6 PS 5 6 SW |
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