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 µV Typical Low Number of External Parts Required Operating Frequency Up to 60 MHz Full ESD Protection Representative Block Diagram Mixer Input Gnd Mute Scan Control Squelch In Filter Output 16 15 14 13 12 11 Filter Recovered Input Audio 10 9 – Filter Amp Squelch Trigger with Hysteresis + AF Amp Demodulator Mixer Limiter Amp 10 pF 52 k 50 k 1.8 k Oscillator 1.8 k 1 2 Crystal Osc 3 4 5 Mixer Output VCC Limiter Input 6 7 Decoupling 8 Quad Coil 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: [email protected] Http: www.ceramate.com.tw Rev 0.2 Fev.13,2004 CM5018 (Preliminary) Low Power Narrowband FM IF MAXIMUM RATINGS (TA = 25°C, unless otherwise noted.) Pin Symbol Value Unit Power Supply Voltage 4 Operating Supply Voltage Range 4 VCC(max) 10 Vdc VCC 2.0 to 8.0 Vdc Detector Input Voltage 8 – 1.0 Vp–p Input Voltage (VCC 16 V16 1.0 VRMS Mute Function 14 V14 –0.5 to +5.0 Vpk Junction Temperature – TJ 150 °C Operating Ambient Temperature Range – TA –30 to +70 °C Storage Temperature Range – Tstg –65 to +150 °C Rating q 4.0 V) ELECTRICAL CHARACTERISTICS (VCC = 4.0 Vdc, fo = 10.7 MHz, ∆f = ± 3.0 kHz, fmod = 1.0 kHz, TA = 25°C, unless otherwise noted.) Characteristic Pin Drain Current (No Signal) Min Typ Max 2.0 3.7 2.8 5.2 3.5 6.3 4 Squelch “Off” Squelch “On” Unit mA Recovered Audio Output Voltage (Vin = 10 mVrms) 9 130 170 210 mVrms Input Limiting Voltage ( –3.0 dB Limiting) 16 – 2.6 6.0 µV Total Harmonic Distortion 9 – 0.86 – % Recovered Output Voltage (No Input Signal) 9 60 190 350 mVrms Drop Voltage AF Gain Loss 9 – 3.0 – 0.6 – dB Detector Output Impedance – – 450 – Ω Filter Gain (10 kHz) (Vin = 0.3 mVrms) – 40 50 – dB Filter Output Voltage 11 0.5 0.7 0.9 Vdc Mute Function Low 14 – 30 50 Ω Mute Function High 14 1.0 11 – MΩ Scan Function Low (Mute “Off”) (V12 = 1.0 Vdc) 13 – 0 0.4 Vdc Scan Function High (Mute “On”) (V12 = Gnd) 13 3.0 3.9 – Vdc Trigger Hysteresis – – 45 100 mV Mixer Conversion Gain 3 – 28 – dB Mixer Input Resistance 16 – 3.3 – kΩ Mixer Input Capacitance 16 – 9.0 – pF * 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: [email protected] 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 0.01 VCC 1 68 pF FL1 muRata CFU455D2 51 2 15 3 14 Audio Mute 4 13 Scan Control CM5018 220 pF Mixer Input 10.7 MHz 16 5 10 k SQ SW Input 12 0.1 1.0 6 11 7 10 8 9 470 k 0.1 Filter Amp Out + 510 8.2 k 20 k Filter Amp In + 1.0 AF Output 0.01 0.1 Quad Coil FL1 – muRata Erie North America CFU455D2 or equivalent Quadrature Coil – Toko America Type 7MC–8128Z or equivalent C – µF, unless noted Figure 2. Audio Output, Distortion versus Supply Voltage Figure 3. Audio Output, Distortion versus Temperature 8.0 7.0 170 6.0 Audio Output 160 5.0 150 4.0 140 3.0 2.0 130 Distortion 120 110 2.0 4.0 6.0 VCC, SUPPLY VOLTAGE (V) 1.0 8.0 240 220 AUDIO OUTPUT (mVrms) 180 TcA = 25°C AUDIO OUTPUT DISTORTION (%) AUDIO OUTPUT (mVrms) 190 VCC = 4.0 V 200 180 Audio Output 160 140 2.0 120 Distortion 100 0 80 –40 0 –20 40 20 60 TA, AMBIENT TEMPERATURE (°C) 1.0 80 * 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: [email protected] Http: www.ceramate.com.tw Rev 0.2 Fev.13,2004 0 CM5018 (Preliminary) Low Power Narrowband FM IF Figure 4. Input Limiting Voltage Figure 5. Overall Gain, Noise and AM Rejection 1.0 10 VCC = 4.0 V Audio Output (1.0 kHz) RELATIVE OUTPUT (dB) LIMITING (dB) – 1.0 – 2.0 – 3.0 – 4.0 – 5.0 – 6.0 0.001 Referred to 0 dB for S + N ± 3.0 kHz FM 0 0 –10 –20 S + N (30% AM) –30 –40 –50 N –60 0.01 0.1 INPUT SIGNAL (mVrms) –70 0.001 1.0 0.01 80 60 70 50 60 40 30 20 10 50 40 30 20 10 0 1.0 k 1.0 Figure 7. Filter Amp Gain 70 GAIN (dB) GAIN (dB) Figure 6. Filter Amp Response 0.1 INPUT SIGNAL (mVrms) 10 10 k 100 k f, FREQUENCY (Hz) 1.0 M 0 0 1.0 2.0 3.0 4.0 5.0 6.0 VCC, SUPPLY VOLTAGE (V) 7.0 8.0 Figure 8. Supply Current SUPPLY CURRENT (mAdc) 8.0 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: [email protected] Http: www.ceramate.com.tw Rev 0.2 Fev.13,2004 CM5018 (Preliminary) Low Power Narrowband FM IF Figure 9. Simplified Application Scan Control to PLL VCC = 4.0 V 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 + C13 10 C11 0.1 C10 0.001 R1 51 R3 3.3 k R4 6.8 k C7 0.022 C9 0.001 R6 470 k C8 0.047 C1 0.01 16 15 14 13 12 VR2 (Squelch Control) 10 k R5 3.3 k 11 10 9 6 7 8 VR1 22 k AF Output to Audio Power Amp. CM5018 1 10.245 MHz 2 3 4 5 C2 68 pF C5 0.1 FL1 C3 220 pF Quad Coil R2 20 k C4 0.1 Units: R:Ω C : µF unless noted C6 0.1 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: [email protected] Http: www.ceramate.com.tw Rev 0.2 Fev.13,2004 CM5018 (Preliminary) Low Power Narrowband FM IF External Dimensions(Units:mm) 9 1 8 0.3 4.4 6.2 10 16 1.5 0.11 0.15 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 Tel:886-3-3214525 Fax:886-3-3521052 Page 6 of 6 Email: [email protected] Http: www.ceramate.com.tw Rev 0.2 Fev.13,2004