參數(shù)資料
型號(hào)： TDA9887TS/V3
廠商： NXP SEMICONDUCTORS
元件分類： 接收器
英文描述： AM/FM, AUDIO/VIDEO DEMODULATOR, PDSO24
封裝： 5.30 MM, PLASTIC, MO-150, SOT-340-1, SSOP-24
文件頁數(shù)： 11/56頁
文件大?。?/td> 230K
代理商： TDA9887TS/V3
2002 Mar 05
19
Philips Semiconductors
Product specication
I2C-bus controlled multistandard alignment-free
IF-PLL demodulator with FM radio
TDA9887TS
9.2.4
DATA BYTE FOR DATA MODE
Table 14 Bit description of SAD register for data mode (SAD = 10)
Table 15 Options in extended TV mode; bit 3 = 0 of SAD = 00 register
Table 16 Options in extended radio mode; bit3=1 of SAD =00 register
BIT
VALUE
DESCRIPTION
7
VIF-AGC output at pin OP2
dependent on bits 5 and 1; see Table 15
6
L standard PLL gating HIGH
1
gating in case of 36% positive modulation
0
gating in case of 0% positive modulation
5
VIF, SIF and tuner minimum gain
dependent on bit 7; see Table 15
4to2
Frequency selection
see Table 17
1 and 0
Standard frequency sound intercarrier (sound 2nd IF)
00
fFM = 4.5 MHz
01
fFM = 5.5 MHz
10
fFM = 6.0 MHz
11
fFM = 6.5 MHz (for positive modulation choose 6.5 MHz)
FUNCTION
BIT 7 = 0
BIT 7 = 1
BIT5=0
BIT5=1
BIT5=0
BIT5=1
Pin OP1
port function
VIF-AGC external input
Pin OP2
port function
VIF-AGC output
port function
Gain
normal gain
minimum gain
normal gain
external gain
FUNCTION
BIT 7 = 0
BIT 7 = 1
BIT4=0, BIT3=0
BIT4=1, BIT3=1
Pin AFC
FM radio carrier related AFC
SIF-AGC radio output
FM-AGC radio output
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