SA1787 Datasheet, PDF (4/19 Pages) Silan Microelectronics Joint-stock – SINGLE-CHIP TUNER IC FOR CAR RADIOS

SA1787
Characteristics
Main Total Harmonic
Distortion
Symbol
Test conditions
10.7 MHz, 100 dBµ, L+R = 90%, pilot =
THD-Main L _{10%. Signal at pin 15}
Pilot Cancellation
PCAN
10.7 MHz, 100 dBµ, pilot = 10%.
The pin 15 signal/the pilot level leakage.
DIN audio
SNC Output Attenuation
HCC Output Attenuation
AttSNC
AttHCC-1
10.7 MHz, 100 dBµ, L-R = 90%, pilot =
10%.
V28 = 3 V Æ 0.6 V, pin 15
10.7 MHz, 100 dBµ, 10 kHz, L+R = 90%,
pilot = 10%.
V29 = 3 V Æ0.6 V, pin 15
Min. Typ. Max. Unit
0.2 1.2 %
20 30
dB
1
6
9 dB
0.5 4.5 8.5 dB
10.7 MHz, 100 dBµ, 10 kHz, L+R = 90%,
AttHCC-2 _{pilot = 10%. V29 = 3 VÆ0.1 V, pin 15}
6 10 14 dB
100 dBµ, 10.7 MHz, 30% modulation.
Input Limiting Voltage
Vi-lim The IF input, output voltage reduces by
33 40 47 dBµ
3 dB
Muting Sensitivity
The IF input level (unmodulated) when
Vi-mute
V33 = 2 V
27 35 43 dBµ
The IF input level (unmodulated) (over
SD Sensitivity
SD-sen1 FM 100 mV rms) , the IF counter buffer
output is turned on
54 63 70 dBµ
SD-sen2 FM
54 62 70 dBµ
10.7 MHz, 100 dBµ, unmodulated. Output
IF Counter Buffer Output VIFBUFF-FM
120 170 250 mVrms
at pin 23
No input. DC output at pin 24,
VSM FM-1
unmodulated
0.0 0.2 0.4 V
Signal Meter Output
VSM FM-2
VSM FM-3
50 dBµ. DC output at pin 24,
unmodulated
70 dBµ. DC output at pin 24,
unmodulated
0.4 1.3 1.6 V
2.0 2.7 3.5 V
100 dBµ. DC output at pin 24,
VSM FM-4
unmodulated
4.7 5.0 5.5 V
Muting Bandwidth
100 dBµ. The bandwidth when V33 = 2 V,
BW-mute
unmodulated
150 220 290 kHz
Mute Drive Output
[FM FE Mixer Input]
N-AGC on Input
100 dBµ, 0 dBµ. DC output at pin 33,
VMUTE-100
unmodulated
VN-AGC
83 MHz, unmodulated.
The input such that the pin 2 voltage is
2.0 V or below
0.00 0.10 0.20 V
79 88 99 dBµ
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.0
2008.08.29
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