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| CM5018 (Preliminary) Low Power Narrowband FM IF The CM5018 includes an Oscillator, Mixer, Limiting Amplifier, Quadrature Discriminator, Active Filter, Squelch, Scan Control and Mute Switch. This device is designed for use in FM dual conversion communications equipment. * * * * * * Operates from 2.0 to 8.0 V Supply Low Drain Current 2.8 mA Typical @ VCC = 4.0 Vdc Excellent Sensitivity: Input Limiting Voltage - - 3.0 dB = 2.6 V Typical Low Number of External Parts Required Operating Frequency Up to 60 MHz Full ESD Protection Representative Block Diagram Mixer Input 16 Scan Control 13 Squelch In 12 Filter Output 11 Filter Recovered Input Audio 10 - Filter Amp Squelch Trigger with Hysteresis + AF Amp 9 Gnd 15 Mute 14 Demodulator Mixer 1.8 k Oscillator 1.8 k 1 Crystal Osc 2 3 Mixer Output 4 VCC 5 Limiter Input 6 7 8 Quad Coil Limiter Amp 50 k 10 pF 52 k Decoupling This device contains 92 active transistors. * All specs and applications shown above subject to change without prior notice. 1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN Tel:886-3-3214525 Fax:886-3-3521052 Page 1 of 6 Email: server@ceramate.com.tw Http: www.ceramate.com.tw Rev 0.2 Fev.13,2004 CM5018 (Preliminary) Low Power Narrowband FM IF MAXIMUM RATINGS (TA = 25C, unless otherwise noted.) Rating Power Supply Voltage Operating Supply Voltage Range Detector Input Voltage Input Voltage (VCC Mute Function Junction Temperature Operating Ambient Temperature Range Storage Temperature Range Pin 4 4 8 16 14 - - - Symbol VCC(max) VCC - V16 V14 TJ TA Tstg Value 10 2.0 to 8.0 1.0 1.0 -0.5 to +5.0 150 -30 to +70 -65 to +150 Unit Vdc Vdc Vp-p VRMS Vpk C C C q 4.0 V) ELECTRICAL CHARACTERISTICS (VCC = 4.0 Vdc, fo = 10.7 MHz, f = 3.0 kHz, fmod = 1.0 kHz, TA = 25C, unless otherwise noted.) Characteristic Drain Current (No Signal) Squelch "Off" Squelch "On" Recovered Audio Output Voltage (Vin = 10 mVrms) Input Limiting Voltage ( -3.0 dB Limiting) Total Harmonic Distortion Recovered Output Voltage (No Input Signal) Drop Voltage AF Gain Loss Detector Output Impedance Filter Gain (10 kHz) (Vin = 0.3 mVrms) Filter Output Voltage Mute Function Low Mute Function High Scan Function Low (Mute "Off") (V12 = 1.0 Vdc) Scan Function High (Mute "On") (V12 = Gnd) Trigger Hysteresis Mixer Conversion Gain Mixer Input Resistance Mixer Input Capacitance 9 16 9 9 9 - - 11 14 14 13 13 - 3 16 16 Pin 4 2.0 3.7 130 - - 60 - 3.0 - 40 0.5 - 1.0 - 3.0 - - - - 2.8 5.2 170 2.6 0.86 190 - 0.6 450 50 0.7 30 11 0 3.9 45 28 3.3 9.0 3.5 6.3 210 6.0 - 350 - - - 0.9 50 - 0.4 - 100 - - - mVrms V % mVrms dB dB Vdc M Vdc Vdc mV dB k pF Min Typ Max Unit mA * All specs and applications shown above subject to change without prior notice. 1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN Tel:886-3-3214525 Fax:886-3-3521052 Page 2 of 6 Email: server@ceramate.com.tw Http: www.ceramate.com.tw Rev 0.2 Fev.13,2004 CM5018 (Preliminary) Low Power Narrowband FM IF Figure 1. Test Circuit 10.245 MHz VCC 220 pF 1 68 pF 2 FL1 3 4 5 0.1 6 0.1 7 20 k 8 9 0.01 0.1 Quad Coil 11 470 k 10 8.2 k 15 14 13 10 k 12 SQ SW Input 1.0 + 510 + 1.0 Filter Amp In AF Output Filter Amp Out Audio Mute Scan Control 16 51 0.01 Mixer Input 10.7 MHz muRata CFU455D2 CM5018 FL1 - muRata Erie North America CFU455D2 or equivalent Quadrature Coil - Toko America Type 7MC-8128Z or equivalent C - F, unless noted Figure 2. Audio Output, Distortion versus Supply Voltage 190 AUDIO OUTPUT (mVrms) 180 170 160 150 140 130 120 110 2.0 Distortion Tc = 25C A 8.0 7.0 Audio Output 6.0 5.0 4.0 3.0 2.0 1.0 8.0 0 AUDIO OUTPUT DISTORTION (%) AUDIO OUTPUT (mVrms) 240 220 200 180 160 140 120 100 80 Figure 3. Audio Output, Distortion versus Temperature VCC = 4.0 V Audio Output 2.0 Distortion 1.0 80 0 4.0 6.0 VCC, SUPPLY VOLTAGE (V) -40 0 -20 40 20 60 TA, AMBIENT TEMPERATURE (C) * All specs and applications shown above subject to change without prior notice. 1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN Tel:886-3-3214525 Fax:886-3-3521052 Page 3 of 6 Email: server@ceramate.com.tw Http: www.ceramate.com.tw Rev 0.2 Fev.13,2004 CM5018 (Preliminary) Low Power Narrowband FM IF Figure 4. Input Limiting Voltage 1.0 VCC = 4.0 V 0 RELATIVE OUTPUT (dB) - 1.0 LIMITING (dB) - 2.0 - 3.0 - 4.0 - 5.0 - 6.0 0.001 0.01 0.1 INPUT SIGNAL (mVrms) 1.0 Audio Output (1.0 kHz) 0 -10 -20 S + N (30% AM) -30 -40 -50 -60 -70 0.001 0.01 0.1 INPUT SIGNAL (mVrms) 1.0 10 N 10 Referred to 0 dB for S + N 3.0 kHz FM Figure 5. Overall Gain, Noise and AM Rejection Figure 6. Filter Amp Response 70 60 50 GAIN (dB) 40 30 20 10 0 1.0 k 10 k 100 k f, FREQUENCY (Hz) 1.0 M GAIN (dB) 80 70 60 50 40 30 20 10 0 0 1.0 Figure 7. Filter Amp Gain 2.0 3.0 4.0 5.0 6.0 VCC, SUPPLY VOLTAGE (V) 7.0 8.0 Figure 8. Supply Current 8.0 SUPPLY CURRENT (mAdc) 6.0 Squelch "On" 4.0 Squelch "Off" 2.0 0 0 6.0 4.0 2.0 VCC, SUPPLY VOLTAGE (Vdc) 8.0 * All specs and applications shown above subject to change without prior notice. 1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN Tel:886-3-3214525 Fax:886-3-3521052 Page 4 of 6 Email: server@ceramate.com.tw Http: www.ceramate.com.tw Rev 0.2 Fev.13,2004 CM5018 (Preliminary) Low Power Narrowband FM IF Figure 9. Simplified Application VCC = 4.0 V Scan Control to PLL R7 18 k R9 100 k 1st IF 10.7 MHz from Input Front End + C12 4.7 R10 1.0 k R8 4.7 k VR2 (Squelch Control) 10 k C13 10 R1 51 + C11 0.1 C10 0.001 R4 6.8 k C9 0.001 R5 3.3 k R3 3.3 k C7 0.022 C8 0.047 R6 470 k C1 0.01 16 15 14 13 12 11 10 9 VR1 22 k AF Output to Audio Power Amp. CM5018 Quad Coil 1 10.245 MHz C2 68 pF 2 3 4 5 6 C5 0.1 7 8 FL1 C3 220 pF C4 0.1 R2 20 k C6 0.1 Units: R: C : F unless noted FL1 - muRata Erie North America Type CFU455D2 or equivalent Quadrature Coil - Toko America Type 7MC-8128Z or equivalent * All specs and applications shown above subject to change without prior notice. 1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN Tel:886-3-3214525 Fax:886-3-3521052 Page 5 of 6 Email: server@ceramate.com.tw Http: www.ceramate.com.tw Rev 0.2 Fev.13,2004 CM5018 (Preliminary) Low Power Narrowband FM IF External Dimensions(Units:mm) 10 16 9 6.2 4.4 0.15 1 8 1.5 0.11 1.27 0.4 0.1 SOP-16 * All specs and applications shown above subject to change without prior notice. 1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN 0.3 Tel:886-3-3214525 Fax:886-3-3521052 Page 6 of 6 Email: server@ceramate.com.tw Http: www.ceramate.com.tw Rev 0.2 Fev.13,2004 |
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