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| TK14600 NARROW BAND FM IF AMPLIFIER FEATURES s s s s Low Voltage Operation Two Stage IF Limiter Mixer Adjustable Internal Regulator APPLICATIONS s GPS Systems s Digital Communications DESCRIPTION The TK14600 is a low operating voltage FM IF system designed for use in GPS receivers and other digital communications systems. This IC contains a high gain 2-stage IF limiter with an internal voltage regulator. The TK14600 is available in the SSOP-12 (MFP-12) surface mount package. TK14600 MIXER INPUT MIXER OUTPUT GND IF AMP INPUT VCC IF AMP OUTPUT OSC INPUT REG INPUT REG OUTPUT LIMITER AMP OUTPUT LIMITER AMP DECOUP LIMITER AMP INPUT BLOCK DIAGRAM ORDERING INFORMATION TK14600M Tape/Reel Code Vref ERROR AMP + TAPE/REEL CODE BX: Bulk/Bag TL: Tape Left MG: Magazine IF AMP LIMITER AMP January 2000 TOKO, Inc. Page 1 TK14600 ABSOLUTE MAXIMUM RATINGS Maximum Supply Voltage .......................................... 6 V Operating Voltage Range .............................. 2.3 to 5.5 V Junction Temperature .......................................... 150 C Power Dissipation (Note 1) ................................ 250 mW Lead Soldering Temp. (10 sec.) ......................... 235 C Storage Temperature Range ................... -55 to +150 C Operating Temperature Range .................. -30 to +80 C TK14600 ELECTRICAL CHARACTERISTICS Test Conditions: VCC = 3 V, FRF = 20 MHz, FOSC = 18.9 MHz, Injection Level = -5dBm, FIF = 1.1 MHz SYMBOL ICC GM fIN GIF1 VOUT1 GIF2 VOUT2 fIF VR PARAMETER Supply Current Mixer Transfer Gain Mixer Operating Frequency Range IF Amp Gain IF Amp Output Voltage Limiter Amp Gain Limiter Amp Output Voltage IF Amp, Limiter Amp Operating Frequency Range Voltage Regulator Output TEST CONDITIONS No input fRF = 20.0 MHz, 50 dB input fOSC = 18.9 MHz, -5 dBm input MIN 2.0 24 0.1 TYP 2.7 30 MAX 3.4 36 40 UNITS mA dB MHz dB VP-P dB VP-P MHz V 40 dB input, fIF = 1.1 MHz 80 dB input, fIF = 1.1 MHz 20 dB input, fIF = 1.1 MHz 80 dB input, fIF = 1.1 MHz 24 0.22 65 0.6 0.1 30 0.33 75 1.0 36 0.44 85 1.4 5 IOUT = 10 mA 1.8 2.0 2.2 Note 1: Power dissipation is 250 mW in free air. Derate at 2.0 mW/C for operation above 25 C. TEST CIRCUIT REG OUT + V4 24 k 4.7 F 2SA 733 Q1 VCC V3 100 k 0.1 F Test Conditions: VCC = 3 V, TA = 25 C Mixer SG1 (RF Input) SG2 (Local Input) V1 (IF Output) SG3 (IF1 Input) V2 (IF1 Output) SG4 (IF2 Input) V3 (IF2 Output) 20 MHz Non-mod 18.9 MHz Non-mod 1.1 MHz 1.1 MHz Non-mod 27 k 10 mA 0.01 F 0.1 F 51 k SG2 1 k 0.1 F 0.1 F 51 ~ SG4 ~ 51 IF Amp Limiter Amp Regulator 1.1 MHz Non-mod 0.01 F 0.1 F SG1 V4 (Regulator Output) ~ 51 V1 0.1 F 100 SG3 0.1 F ~ 51 100 k V2 VCC = 3 V + 10 F 0.1 F Page 2 January 2000 TOKO, Inc. TK14600 TYPICAL PERFORMANCE CHARACTERISTICS MIXER FREQUENCY CHARACTERISTICS INJ-Level = -5 dBm 40 -20 MIXER THIRD ORDER PRODUCTS fRF1 = 20.001 MHz fRF2 = 19.999 MHz fOSC = 19.0 MHz INJ-Level = -5 dBm fIF = 1.0 MHz 30 LEVEL (dBm) GAIN (dB) -40 Desier Level 20 -60 10 -80 3rd Order Products 0 0 20 40 60 80 100 120 fIN (MHz) -100 0 20 40 60 80 100 120 RFIN (dB) 40 MIXER GAIN vs. INJECTION LEVEL 80 IF FREQUENCY CHARACTERISTICS Limiter Amp 30 GAIN (dB) GAIN (dB) 60 20 40 IF Amp 10 20 0 -40 -30 -20 -10 0 10 20 0 10 f (MHz) INJECTION LEVEL (dBm) 80 GAIN vs. SUPPLY VOLTAGE 5 4 3 2 1 0 VOLTAGE REGULATOR OUTPUT and SUPPLY CURRENT vs. SUPPLY VOLTAGE Limiter Amp Gain 60 ICC (mA), VREG (V) GAIN (dB) ICC 40 MIXER GAIN IF Amp Gain REG OUT 20 0 0 2 4 VCC (V) 6 8 0 2 4 VCC (V) 6 8 January 2000 TOKO, Inc. Page 3 TK14600 TYPICAL PERFORMANCE CHARACTERISTICS (CONT.) OUTPUT VOLTAGE vs. SUPPLY VOLTAGE 1.5 80 GAIN vs. TEMPERATURE Limiter Amp Gain 60 VOUT (VP-P) 1.0 GAIN (dB) Limiter Amp Out 40 IF Amp Gain 0.5 IF Amp Out 20 0 0 2 4 VCC (V) 6 8 0 -40 0 40 TA (C) 60 80 5 4 SUPPLY CURRENT and VOLTAGE REGULATOR OUTPUT vs. TEMPERATURE 1.5 OUTPUT VOLTAGE vs. TEMPERATURE ICC (mA), VREG (V) VOUT (VP-P) 3 2 1 ICC 1.0 Limiter Amp Out REG OUT 0.5 IF Amp Out 0 -40 0 40 TA (C) 60 80 0 -40 0 40 TA (C) 60 80 -10 -20 -30 LEVEL (dBm) IF OUTPUT LEVEL vs. RF INPUT LEVEL IF OUTPUT LEVEL -40 -50 -60 -70 -80 -90 -100 -110 -20 VCC = 3 V IF = 20 MHz NOISE LEVEL BW = 100 Hz VIDEO FILTER = 100 Hz 0 20 40 60 80 100 120 RF INPUT LEVEL (dB) Page 4 January 2000 TOKO, Inc. TK14600 PIN FUNCTION DESCRIPTION VCC = 3 V, fRF = 20 MHz, fOSC = 19 MHz, Injection Level: -3 dBm, fIF = 1 MHz PIN NO. 1 SYMBOL MIXER INPUT VOLTAGE 0.95 V 10 k INTERNAL EQUIVALENT CIRCUIT VCC DESCRIPTION Mixer RF Input Pin The operating frequency range is up to 40 MHz. This pin is internally terminated with a 3 k resistor. 300 2 MIXER OUTPUT 2.0 V VCC Mixer Output Pin The output impedance is 1 k. 1k 3 4 GND IF AMP INPUT 2.3 V 3.3 k VCC GND Pin IF Amplifier Input Pin. The input impedance is 1 k. The voltage gain is approximately 28 dB. The IF amplifier frequency range is up to 3 MHz. 3.3 k 1k 1k 33 p 5 VCC Power Supply Pin. The supply voltage range is 2.3 to 5.5 V. 2.05 V VCC 6 IF AMP OUTPUT IF Amplifier Output The output impedance is 1 k. The typical level is 300 mVP-P. 1k January 2000 TOKO, Inc. Page 5 TK14600 PIN FUNCTION DESCRIPTION VCC = 3 V, fRF = 20 MHz, fOSC = 19 MHz, Injection Level: -3 dBm, fIF = 1 MHz PIN NO. 7 SYMBOL LIMITER AMP INPUT VOLTAGE 1.85 V VCC 6.8 k 6.8 k 51 k INTERNAL EQUIVALENT CIRCUIT DESCRIPTION Limiter Amplifier Input Pin. The input impedance is 1 k. The gain of this stage is approximately 70 dB. The limiter frequency range is up to 3 MHz. 8 LIMITER AMP DECOUPLING 1.78 V VCC 6.8 k 6.8 k 51 k Limiter Amplifier Decoupling Pin. A 0.1 F decoupling capacitor is connected to this pin. 9 LIMITER AMP OUTPUT 1.89 V 6.8 k 6.8 k VCC Limiter Amplifier Output Pin. The output impedance is approximately 200 . The typical output level is 1 VP-P. This value is suitable for CMOS interface. 10 REGULATOR OUTPUT VCC 100 k 1k Regulator Control Output Pin. This pin is the regulator's error amplifier output pin. This pin drives the external PNP transistor base. Page 6 January 2000 TOKO, Inc. TK14600 PIN FUNCTION DESCRIPTION VCC = 3 V, fRF = 20 MHz, fOSC = 19 MHz, Injection Level: -3 dB, fIF = 1 MHz PIN NO. 11 SYMBOL REGULATOR INPUT VOLTAGE INTERNAL EQUIVALENT CIRCUIT VCC DESCRIPTION Error Amplifier Input Pin. The reference voltage of the error amplifier is approximately 1 V. Therefore, the regulator's output voltage is determined as follows: VOUT = 1.0 X (R1 + R2)/R2 Local Oscillator Input Pin REG OUT R1 R2 12 OSC INPUT 2.98 V VCC 3k 3k 22 pF APPLICATION CIRCUIT V3 REG + 4.7 F 100 k 0.01 F 51 k 0.1 F SG1 VCC 2SA733 100 k 0.1 F 1 k 0.01 F TP1 Conditions: VCC = 3 V, TA = 25 C RF Input Frequency Local Input Frequency IF Frequency VCC 4 6 T2 20.1 MHz 19.0 MHz, Inj. Level -5 dBm 1.1 MHz 3.0 V 0.01 F ~ 51 IF Coil Application (T1, T2) TOKO Part Number Center Frequency A7LCS-12434N 1.1 MHz 180 pF 3 3 1 2 0.01 F 0.01 F SG2 0.1 F 3 4 2 6 1 T1 10 F 0.01 F VCC + 0.1 F ~ 51 Internal Capacitor Unloaded Q. Winding (1-3) (2-3) (4-6) Above 80 4 64T. 11T. 11T. 2 6 1 January 2000 TOKO, Inc. Page 7 TK14600 PACKAGE OUTLINE Marking Information TK14600M 0.4 SSOP-12 (MFP12) 600 Marking 12 7 e1 5.4 AAA 4.4 1.2 YYY e 0.8 Recommended Mount Pad 1 Lot. No. 6 1.7 max 1.4 0.5 0 ~ 10 5.0 0 ~ 0.2 +0.15 0.3 -0.05 e 0.8 0.1 6.0 0.10 M + 0.3 Dimensions are shown in millimeters Tolerance: x.x = 0.2 mm (unless otherwise specified) Toko America, Inc. Headquarters 1250 Feehanville Drive, Mount Prospect, Illinois 60056 Tel: (847) 297-0070 Fax: (847) 699-7864 TOKO AMERICA REGIONAL OFFICES Midwest Regional Office Toko America, Inc. 1250 Feehanville Drive Mount Prospect, IL 60056 Tel: (847) 297-0070 Fax: (847) 699-7864 Western Regional Office Toko America, Inc. 2480 North First Street , Suite 260 San Jose, CA 95131 Tel: (408) 432-8281 Fax: (408) 943-9790 Eastern Regional Office Toko America, Inc. 107 Mill Plain Road Danbury, CT 06811 Tel: (203) 748-6871 Fax: (203) 797-1223 Semiconductor Technical Support Toko Design Center 4755 Forge Road Colorado Springs, CO 80907 Tel: (719) 528-2200 Fax: (719) 528-2375 Visit our Internet site at http://www.tokoam.com The information furnished by TOKO, Inc. is believed to be accurate and reliable. However, TOKO reserves the right to make changes or improvements in the design, specification or manufacture of its products without further notice. TOKO does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or other rights of third parties which may result from the use of its products. No license is granted by implication or otherwise under any patent or patent rights of TOKO, Inc. Page 8 (c) 1997 Toko, Inc. All rights reserved Printed in the USA IC1299O0.0K 0.15 +0.15 -0.05 January 2000 TOKO, Inc. Printed in the USA |
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