SA2111C SILAN | Alldatasheet
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HANGZHOU SILAN MICROELECTRONICS CO.,LTD Rev: 1.1 2005.10.26 Http: www.silan.com.cn Page 1 of 10 BLOCK DIAGRAM 3V AM/FM +MPX TUNER IC(FOR MECHANICAL TUNING) SDIP243001.778 SSOP243000.65 SSOP243001.0 SOP243751.27
DESCRIPTION
The SA2111C is AM/FM singlechip tuner IC, which is designed for portable radios and 3V head phone radios. It is suitable for digit tuning system, and FM local oscillation voltage is set up low relativity, for NE W FCC.
FEATURES
- Operating supply voltage range: VCC=1.8~7V (Ta mb=25°C) * AM detector coil, FM IFT, IF coupling condenser are not ne eded. * For adopting ceramic discriminator, it is not necessary to adjust the FM quad detector circuit. * Builtin FM MPX VCO circuit * Builtin varactor diode for AFC * Builtin AM low cut circuit * Low supply current. (VCC=3V, Ta mb=25°C) ICCq(FM)=9.0mA (Typ.) ICCq(AM)=5.0mA (Typ.) Note: Handle with care to prevent devices from deteriorations by ESD.
ORDERING INFORMATION
SA2111C SDIP243001.778 SA2111CS SSOP243000.65 SA2111CA SOP243751.27 SA2111CB SSOP243001.0
HANGZHOU SILAN MICROELECTRONICS CO.,LTD Rev: 1.1 2005.10.26 Http: www.silan.com.cn Page 2 of 10 ABSOLUTE MAXIMUM RATINGS(Ta mb=25°C) Characteristic Symbol Value Unit Supply Voltage VCC 8 V LED Current ILED 10 mA LED Voltage VLED 8 V Power Dissipation PD (note) 1200 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 SA2111C. 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) Characteristics Symbol Test Condition Min. Typ. Max. Unit ICC(FM) Vin=0, FM mode 9 12.5 Supply Current ICC(AM) Vin=0, AM mode 5 7.5 mA Input Limiting Voltage Vin(lim) 3dB limiting 7 dBµ V EMFF/E Local OSC Voltage VO SC F O SC=108.7MHz 105 mVrms Input Limiting Voltage Vin(lim) IF 3dB limiting 35 40 45 dBµ V EMF Recovered Output Voltage VOD V in=80dBµ V EMF 90 105 120 mV rms Signal To Noise Ratio S/N Vin=80dBµ V EMF 65 dB Total Harmonic Distortion THD Vin=80dBµ V EMF 0.2 % AM Rejection Ration A M R V in=80dBµ V EMF 50 Db LED On Sensitivity VL IL=1mA 40 45 50 dBµ V EMF FM IF Soft Mute Attenuation M U T E Vin=0 20 dB Gain GV Vin=25dBµ V EMF 18 35 70 mV rms Recovered Output Voltage V O D V in=60dBµ V EMF 50 70 90 mV rms Signal To Noise Ratio S/N Vin=60dBµ V EMF 41 dB Total Harmonic Distortion THD V in=60dBµ V EMF 0.7 % AM LED On Sensitivity VL IL=1mA 23 28 33 dBµ V EMF FM mode 0.75 Pin (18) Output Resistance R18 AM mode 15.5 kΩ Input Resistance RIN 55 kΩ Output Resistance ROUT 5 kΩMPX Max. Composite Signal Input Voltage Vin MAX (STEREO) L+R=90%, P=10%, fm=1Khz, THD=3% 700 mV rms
HANGZHOU SILAN MICROELECTRONICS CO.,LTD Rev: 1.1 2005.10.26 Http: www.silan.com.cn Page 3 of 10 (Continued) PIN CONFIGURATION PIN DESCRIPTION Pin No. Symbol Description
1 FMRF IN FMRF INPUT
2 RF GND GND for FM RF, FM OSC stage
3 AM LOW CUT AM LOW FREQUENCY CUT DOWN
4 MIX OUT FM & AM MIX OUTPUT
5 AGC AUTOMATIC GAIN CONTROL
6 VCC VCC for AM, FM IF, FM MPX stage
7 AM IF IN AM IF INPUT
(To be continued) Characteristics Symbol Test Condition Min. Typ. Max. Unit fm=100Hz 45 fm=1kHz 35 45 Separation Sep L+R=180mVrms, P=20mVr ms fm=10kHz 45 dB Monaural THD (MONAURAL)Vin=200mVr ms 0.3 MPX Total Harmonic Distortion Stereo THD (STEREO)L+R=180mVrms, P=20mVrms 0.3 Voltage Gain GV Vin=200mVr ms 2.5 1 0.5 dB Channel Balance C.B. V in=200mVr ms 1.5 0 1.5 dB ON VL(ON) 8 12Stereo LED Sensitivity OFF VL(OFF) Pilot input 3 6 mVrms Stereo LED Hysteresis VH To LED turn off from LED turn on 2 mV rms Capture Range C.R. P=20mV r ms ±8 % MPX Signal To Noise Ratio S/N 80 dB
HANGZHOU SILAN MICROELECTRONICS CO.,LTD Rev: 1.1 2005.10.26 Http: www.silan.com.cn Page 4 of 10 (Continued) Pin No. Symbol Description
8 FM IF IN FM IF INPUT
9 GND GND for AM, FM IF, FM MPX stage
10 TUN LED tuning LED
11 ST LED Stereo LED
12 QUAD FM QUAD. Detector ROUT LOUT Rchannel Output Lchannel Output
15 LPF1
- LPF terminal for synchronous detector
- VCO stop terminal V15=VCC→ VCO STOP
16 LPF2
- LPF terminal for phase detector
- Bias terminal for AM/FM SW circuit V16=VCC→ AM V16=OPEN→ FM
17 MPX IN MPX INPUT
18 DET OUT FM & AM DETECT OUTPUT
19 AFC AUTO FREQUENCY CONTROL
20 AM OSC AM OSC
21 FM OSC FM OSC
22 RF VCC VCC for FM OSC stage
23 FM RF OUT FM RF OUTPUT
24 AM RF IN AM RF INPUT
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.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD Rev: 1.1 2005.10.26 Http: www.silan.com.cn Page 5 of 10 2. FM detection circuit The detection coil can take replace the ceramic discriminator in the FM detection circuit. Recommended circuit and recommended coil are as follows. In this case, please take care that Vin (lim) falls a little. TEST CIRCUIT (1)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD Rev: 1.1 2005.10.26 Http: www.silan.com.cn Page 6 of 10 TEST CIRCUIT (2) COIL DATA Turns Coil No. Test Freq. L (µ H) Co (Pf) Qo Wire (mm∅ ) Reference 0.16UEW Toko Co., Ltd. 666SNF305NK Toko Co., Ltd. 666SNF306NK T1 AM OSC 796kHz 268 65 19 95 0.05UEW Toko Co., Ltd. 5PNR5146Y T2 AM IFT 455kHz 470 60 109 7 0.05UEW Toko Co., Ltd. 5PNR5147Y
HANGZHOU SILAN MICROELECTRONICS CO.,LTD Rev: 1.1 2005.10.26 Http: www.silan.com.cn Page 7 of 10 TYPICAL APPLICATION CIRCUIT VC101B VC101A AM FM ST SW1 AM FM VC101E VC101F
HANGZHOU SILAN MICROELECTRONICS CO.,LTD Rev: 1.1 2005.10.26 Http: www.silan.com.cn Page 8 of 10 PACKAGE OUTLINE SDIP243001.778 UNIT: mm SSOP243000.65 UNIT: mm
HANGZHOU SILAN MICROELECTRONICS CO.,LTD Rev: 1.1 2005.10.26 Http: www.silan.com.cn Page 9 of 10 PACKAGE OUTLINE (Continued) SOP243751.27 UNIT: mm 15.34±0.25 13.97 1.27 0.40 3.10MAX 0.25±0.05 SSOP243001.0 UNIT: mm 6.0±0.2 7.9±0.3 1.8±0.21.8±0.2 2.2MAX 0.1+0.1 0.05 7.62 0.525±0.2