SA1787 Datasheet, PDF (3/19 Pages) Silan Microelectronics Joint-stock – SINGLE-CHIP TUNER IC FOR CAR RADIOS

SA1787
OPERATING CONDITIONS
Characteristics
Recommended Supply Voltage
Operating Supply Voltage Range
Symbol
VCC
VCCST IND
VCC op
Conditions
Pins 6, 7, 40, 45, 54, 59,
60, and 61
(Pin 26)
Ratings
8
5
7.5 to 9.0
Unit
V
V
V
ELECTRICAL CHARACTERISTICS (Special for FM IF input test, Ta = 25°C, VCC= 8.0V)
Characteristics
Symbol
[FM Characteristics] At The FM IF Input
Test conditions
Min. Typ. Max. Unit
Current Drain
ICCO-FM No input, I40 + I45 + I54 + I59 + I60 + I61 70 105 120 mA
Demodulation Output
VO-FM
10.7 MHz, 100dBµ, 1 kHz, 100%mod,
output at pin 15
Pin 31 Demodulation
Output
10.7 MHz, 100dBµ, 1 kHz, 100%mod,
VO-FM31
output at pin 31
Channel Balance
CB
THD-FM
Total Harmonic Distortion
mono
Signal-To-Noise Ratio: IF S/N-FM IF
AM Suppression Ratio:
IF
AMR IF
The ratio of pins 15 and 16 at 10.7 MHz,
100 dBµ, 1 kHz
10.7 MHz, 100 dBµ, 1 kHz, 100% mod,
pin 15
10.7 MHz, 100 dBµ, 1 kHz, 100% mod,
pin 15
10.7 MHz, 100 dBµ, 1 kHz, fm = 1 kHz,
30% AM, pin 15
230 340 420 mVrms
190 305 390 mVrms
–1 0 +1 dB
0.3 1
%
77 84
dB
57 66
dB
Att-1
10.7 MHz, 100 dBµ, 1 kHz. Attenuation at
5
pin 15 when V33 changes from 0 to 2 V
11 15 dB
Muting Attenuation
Separation
Stereo on Level
Stereo off Level
Att-2
10.7 MHz, 100 dBµ, 1 kHz. Attenuation at
15 22 25 dB
pin 15 when V33 changes from 0 to 2 V*1
Att-3
10.7 MHz, 100 dBµ, 1 kHz. Attenuation at
pin 15 when V33 changes from 0 to 2
28 32 38 dB
V*2
10.7 MHz, 100 dBµ, L+R = 90%, pilot =
Separation
30 40
dB
10%. The pin 15 output ratio
ST-ON The pilot modulation, V26<0.5V
1.2 2.4 4.4 %
ST-OFF The pilot modulation, V26>3.5V
0.6 1.7
%
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.0
2008.08.29
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