SA2104 SILAN | Alldatasheet
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HANGZHOU SILAN MICROELECTRONICS CO.,LTD REV:2.0 2004.07.31 Http: www.silan.com.cn Page 1 of 13 BLOCK DIAGRAM 3V AM/FM+MPX TUNER IC(FOR DIGITAL TUNING SYSTEM) SDIP243001.778 SSOP243000.65
DESCRIPTION
The SA2104/SA2104S are single chip tuner ICs that incorporate FM/AM and MPX circuits, which are designed for portable radios and 3V headphone radios. The SA2104/SA2104S are suitable for digital tuning system applications. FM local oscillation voltage is set up low relativity, for NEW FCC.
FEATURES
- Operating supply voltage range: VCC=1.8~10V (Ta mb=25°C) * For NEW FCC * FM/AM and MPX integrated in a singlechip. * Build in FM/AM IF count buffer. FM: 1.3375MHz (1/8 dividing) AM: 450kHz * Build in mute circuit for IF count output according to field strength. * Build in FM MPX VCO circuit * Build in FM/AM OSC buffer output for DTS applications. * Build in AM low cut circuit * Build in stereo indicator. * Low supply current. (VCC=3V, Ta mb=25°C) ICCq (FM)=11.0mA (Typ.) ICCq (AM)=7.5mA (Typ.)
ORDERING INFORMATION
Part No. Package SA2104 SDIP243001.778 SA2104S SSOP243000.65
HANGZHOU SILAN MICROELECTRONICS CO.,LTD REV:2.0 2004.07.31 Http: www.silan.com.cn Page 2 of 13 MAXIMUM RATINGS (Ta mb=25°C) Parameter Symbol Rating Unit Maximum Supply Voltage VCC 14 V Indicator Drive Current ILED 10 mA Indicator Voltage VLED 8 V SA2104 1200 Power Dissipation SA2104S PD (note) 500 mW Operating Temperature Topr 20~+70 °C Storage Temperature Tstg 40~+125 °C Note: Derated above Tamb=25°C in the proportion of 9.6mW/°C for SA2104 of 4mW/°C for SA2104S. ELECTRICAL CHARACTERISTICS (Unless otherwise specified, Ta mb=25°C, VCC=3V, F/E : f=98 MHz, fm=1 kHz ,FM IF : f=10.7 MHz, Δ f =±22.5 kHz, fm= 1 kHz . AM : f=1 MHz, MOD=30%, fm=1 kHz. MPX: fm=1kHz) (TO be continued) Parameter Symbol Test Condition Min. Typ. Max. Unit ICC(FM) V IN=0, FM mode 11.0 18 Quiescent Current ICC(AM) V IN=0, AM mode 7.5 14 mA Input Limiting Voltage Vin(lim) VIN=60 dBµ V EMF 3dB limiting 10 dBµ V EMF F/E Local OSC BUFFER OUTPUT Voltage VOSC (buff) FM FOSC=108.7MHz 23 35 mVrms Input Limiting Voltage Vin(lim) IF VIN=80dBµ V EMF 3dB limiting 35 38 47 dBµ V EMF Recovered Output Voltage VOD V IN=80dBµ V EMF 200 270 300 mVrms Signal To Noise Ratio S/N VIN=80dBµ V EMF 75 dB Total Harmonic Distortion THD V IN=80dBµ V EMF 0.3 % AM Rejection Ration A M R V IN=80dBµ V EMF 60 dB IF Count Output Frequency fIF (FM) VIN=80dBµ V EMF SW7: ON 1.3373 1.3375 1.3377 MHz IF Count Output Voltage VIF (FM) VIN=80dBµ V EMF SW7: ON 200 260 mVpp FM IF IF Count Output Sensitivity IF sens (FM) SW7: ON 40 45 50 dBµ V EMF Gain GV VIN=27dBµ V EMF 20 38 70 mVrms Recovered Output Voltage VOD V IN=60dBµ V EMF 60 90 120 mVrms Signal To Noise Ratio S/N VIN=60dBµ V EMF 41 dB Total Harmonic Distortion THD V IN=60dBµ V EMF 0.7 % Local OSC Buffer Output Voltage VOSC (buff) AM fOSC=1.45MHz 44 66 mVrms IF Count Output Voltage VIF (AM) VIN=60dBµ V EMF, SW7: ON 200 250 mVpp AM IF Count Output Sensitivity IF sens (AM) SW7: ON 38 43 48 dBµ V EMF
HANGZHOU SILAN MICROELECTRONICS CO.,LTD REV:2.0 2004.07.31 Http: www.silan.com.cn Page 3 of 13 (Continued) COIL DATA Turns Coil No. Test Freq. L (µ H) Co (pF) Qo Wire (mm∅ ) 0.16UEW T1 AM OSC 796kHz 268 65 19 95 0.05UEW T2 AM IFT 455kHz 470 60 109 7 0.05UEW Parameter Symbol Test Condition Min. Typ. Max. Unit FM mode 0.75 Pin (17) Output Resistance R17 AM mode 15.5 kΩ Input Resistance RIN 55 kΩ Output Resistance ROUT 5 kΩ Max. Composite Signal Input Voltage Vin MAX (Stereo) L+R=90%, P=10%, SW3: LPF ON fm=1kHz, THD=3% 700 mVrms fm=100Hz 44 fm=1kHz 35 44 Separation Sep L+R=180mVrms, P=20mVrms SW3: LPF ON fm=10kHz 44 dB Monaural THD (Monaural) Vin=200mVrms 0.3 Total Harmonic Distortion Stereo THD (Stereo) L+R=180mVrms, P=20mVrms S W3: LPF ON 0.3 Voltage Gain GV Vin=200mVrms 2.7 1.2 0.2 dB Channel Balance C.B. Vin=200mVrms 1.5 0 1.5 dB ON VL (ON) 10 14Stereo LED Sensitivity OFF VL (OFF) Pilot input(19KHZ) 5 8 mVrms Stereo LED Hysteresis VH To LED turn off from LED turn on 2 mVrms Capture Range C.R. P=15mVrms ±8 % MPX Signal To Noise Ratio S/N Vin=200mVrms 80 dB Muting Attenuation MUTE Vin=200mVrms 80 dB
HANGZHOU SILAN MICROELECTRONICS CO.,LTD REV:2.0 2004.07.31 Http: www.silan.com.cn Page 4 of 13 PIN CONFIGURATION RF GND FM RFIN MIX OUT VCC AM IF IN FM IF IN GND AGC LPF2 IF REQ ST LED OSC OUT AM OSC LPF1 MPX IN DET OUT FM RFOUT FM OSC AM RFIN RF VCC LOUT AM LOW CUT ROUT QUAD PIN DESCRIPTIONS AND QUIESCENT VOLTAGE Pin voltage (Typ.) (V)Pin No. Symbol Pin description Internal circuit AM FM
1 RF GND GND for FM OSC stage 0 0
2 FMRFin FMRF input pin. 0 0.8 AM LOW CUT AM low frequency cut down pin 1.0 4 MIX OUT AM/FM mixer output pin. 3.0 0.5
5 VCC
V C C f o r A M , F M I F , F M MPX stage 3.0 3.0 (To be continued)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD REV:2.0 2004.07.31 Http: www.silan.com.cn Page 5 of 13 (Continued) Pin voltage (Typ.) (V)Pin No. Symbol Pin description Internal circuit AM FM 6 AMIF IN AMIF input pin. 2.3 2.5 7 FMIF IN FMIF input. 3.0 3.0
8 GND
G N D f o r A M , F M I F , F M MPX stage. 0 0 9 AGC Auto gain control pin. 0 0
10 QUAD FM Quad
2.5 2.2 ROUT LOUT Right/Left channel output port. 1.2 1.2
13 LPF2
Bias terminal for AM/FM SW circuit V13=GND→ AM V13=OPEN→ FM 0 2.2 (To be continued)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD REV:2.0 2004.07.31 Http: www.silan.com.cn Page 6 of 13 (Continued) Pin voltage (Typ.) (V)Pin No. Symbol Pin description Internal circuit AM FM
14 LPF1
V14=GND→ VCO STOP 0.7 2.4 15 MPX IN MPX input pin. 0.7 0.7 16 DET OUT FM/AM detector output pin. 1.0 0.9 17 IF REQ AM/FM IF output pin. 18 ST LED Stereo indicator. 19 OSC OUT AM/FM oscillator output pin. 400¡ 2.8 2.7 20 AM OSC AM oscillator input pin. 3.0 3.0 21 FM OSC FM oscillator input pin. 3.0 3.0 (To be continued)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD REV:2.0 2004.07.31 Http: www.silan.com.cn Page 7 of 13 (Continued) Pin voltage (Typ.) (V)Pin No. Symbol Pin description Internal circuit AM FM 22 AM RF IN AM RF input pin. 3.0 3.0 23 RF VCC (VCC for FM OSC stage) 3.0 3.0 24 FM RF OUT FM RF output pin. 3.0 3.0 FUNCTION DESCRIPTION Application note: 1. AM lowcut circuit When pin3 is open, no AF signal can pass through the AMP stage because of the common mode. When the value of C3 that connected to pin3 is over 1uF, all AF signal can pass through the AMP stage. The cutoff frequency fL is determined by the internal resistance 22kΩ (Typ.) and the external capacitor C3 as below: C3x310 x22 xʌ x2 fL = (Hz) It is possible to reduce the recovered output level at AM mode, by additional resistance between the pin (3) and GND line. 2. FM detection circuit Recommended circuit and recommended coil are as follows. (Test frequency is 10.7M)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD REV:2.0 2004.07.31 Http: www.silan.com.cn Page 8 of 13 VCC 15pF 51pF Q=45 3. FM/AM switch and forced monaural switch. mode Vpin13 Vpin14 AM LO W (Vth=0.2V(Typ.), Ith 30µ A(Typ.)) / FM OPEN / STEREO / OPEN FORCED MONAURAL / LOW(Vth=0.2V(Typ.), Ith 30µ A(Typ.)) TEST CIRCUIT
HANGZHOU SILAN MICROELECTRONICS CO.,LTD REV:2.0 2004.07.31 Http: www.silan.com.cn Page 9 of 13 ELECTRICAL CHARACTERISTICS CURVES
HANGZHOU SILAN MICROELECTRONICS CO.,LTD REV:2.0 2004.07.31 Http: www.silan.com.cn Page 10 of 13 ELECTRICAL CHARACTERISTICS CURVES (Continued) RESPONSE (dB) TOTAL HARMONIC DISTORTION THD(%) RECOVERED OUTPUT VOLTAGE VOD(mVrms) TOTAL HARMONIC DISTORTION THD(%) IF COUNT SENSITIVITY IF sens (dBV EMF) AM OSC BUFFER OUTPUT VOLTAGE VOSC (buff) AM (mVrms) IF COUNT OUTPUT VOLTAGE VIF (mVpp) IF COUNT SENSITIVITY IFsens (dBV EMF) RECOVERED OUTPUT VOLTAGE VOD(dB) SEPARATION Sep. (dB) TOTAL HARMONIC DISTORTION THD (%) RECOVERED OUTPUT VOLTAGE VOD (dB) SUPPLY CURRENT ICCQ (mA) IF COUNT OUTPUT VOLTAGE VIF (mVpp)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD REV:2.0 2004.07.31 Http: www.silan.com.cn Page 11 of 13 CHARACTERISTICS CURVES (Continued)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD REV:2.0 2004.07.31 Http: www.silan.com.cn Page 12 of 13 PACKAGE OUTLINE SDIP243001.778 UNIT: mm SSOP243000.65 UNIT: mm