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參數(shù)資料
| 型號： | TDA7514 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | SINGLE-CHIP FM/AM TUNER WITH STEREO DECODER AND AUDIO PROCESSOR |
| 中文描述： | 單芯片F(xiàn)M /調(diào)幅調(diào)諧立體聲解碼器和音頻處理器 |
| 文件頁數(shù)： | 60/74頁 |
| 文件大小： | 604K |
| 代理商： | TDA7514 |
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TDA7514
60/74
Table 69. SUBADDRESS 23: ISS Detector
Table 70. SUBADDRESS 24: ISS Test
MSB
D7
LSB
D0
FUNCTION
D6
D5
D4
D3
D2
D1
ISS Enable (active low)
ON
OFF
ISS filter ON/OFF manual control
OFF
ON
ISS Filter Bandwidth manual control
120 kHz
80 kHz
discharge current;charge current mid; narrow
1uA; 74uA; 124uA
3uA; 72uA; 122uA
5uA; 70uA; 120uA
9uA; 66uA; 116uA
15uA; 60uA; 110uA
not used
0
1
0
1
0
1
0
0
0
1
1
0
0
1
0
1
0
1
0
0
1
x
x
MSB
D7
LSB
D0
FUNCTION
D6
D5
D4
D3
D2
D1
ISS test muxer selector (test signal at pin
SMETERTC if bit7 byte17 tuner software is 1)
MPthreshold
ACNthreshold ("ac" threshold)
Dwthreshold ("dev" threshold)
Dthreshold ("dev+" threshold)
ACWthreshold ("ac+" threshold)
ac
MDSCO
ISS out
dev+
dev
refdev
DEMVout
output if bit 7 byte 28 tuner = 0
input if bit 7 byte 28 tuner = 1
ISS AC/MP test mode (pin SD)
Internal AC signal is connected to
QUALIDETECTOR AC input (normal mode)
Internal AC signal is output to pin SD (test mode)
QUALIDETECTOR AC input is driven by internal
AC signal (normal mode)
QUALIDETECTOR AC input is driven by pin SD
(test mode)
Internal MP signal is connected to
QUALIDETECTOR MP input (normal mode)
Internal MP signal is output to pin SD (test mode)
QUALIDETECTOR MP input is driven by internal
MP signal (normal mode)
QUALIDETECTOR MP input is driven by pin SD
(test mode)
0
0
0
0
0
0
0
1
1
1
1
1
0
0
0
1
1
1
1
0
0
0
0
1
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
1
0
1
0
1
0
1
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