參數(shù)資料
型號: TEF6701HL
廠商: NXP SEMICONDUCTORS
元件分類: 接收器
英文描述: Car radio tuner front-end for digital IF
中文描述: AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64
封裝: 10 X 10 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-314-2, LQFP-64
文件頁數(shù): 15/55頁
文件大?。?/td> 318K
代理商: TEF6701HL
9397 750 13471
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 01 — 16 November 2004
15 of 55
Philips Semiconductors
TEF6701HL
Car radio tuner front-end for digital IF
8.2.7
Write mode: data byte 5
Table 19:
Bit
7
Description of data byte 4 bits
Symbol
Description
KAGC
Keyed FM AGC.
If KAGC = 0, then keyed FM AGC is off. If KAGC = 1,
then keyed FM AGC is on.
AGC[1:0]
Wideband AGC.
These 2 bits set the start value of wideband AGC. For
AM, see
Table 20
and for FM, see
Table 21
.
LODX
Local or distance.
If LODX = 0, then distance mode is on. If LODX = 1,
then local mode is on.
FMINJ
FM mixer image rejection.
If FMINJ = 0, then low injection. If
FMINJ = 1, then high injection.
IBOC
FM IBOC mode.
If IBOC = 0, then IBOC buffer amplifier is off. If
IBOC = 1, then IBOC buffer amplifier is on.
IFGAIN
IF amplifier gain.
If IFGAIN = 0, then G
IFAMP
= 10.5 dB. If IFGAIN = 1,
then G
IFAMP
= 14 dB.
MIXGAIN
FM mixer gain.
If MIXGAIN = 0, then the FM mixer gain is nominal. If
MIXGAIN = 1, then the FM mixer gain is +6 dB.
6 and 5
4
3
2
1
0
Table 20:
AGC1
0
0
1
1
Setting of wideband AGC for AM (m = 0.3)
AGC0
0
1
0
1
AM mixer 1 input voltage (peak value) (mV)
530
420
290
150
Table 21:
AGC1
1
1
0
0
Setting of wideband AGC for FM
AGC0
1
0
1
0
FM RF mixer input voltage (RMS value) (mV)
3
6
9
12
Table 22:
Bit 7
LST4
Format of data byte 5
Bit 6
LST3
Bit 5
LST2
Bit 4
LST1
Bit 3
LST0
Bit 2
LSL2
Bit 1
LSL1
Bit 0
LSL0
Table 23:
Bit
7 to 3
Description of data byte 5 bits
Symbol
Description
LST[4:0]
Setting of level DAA starting point.
These 5 bits determine the offset of
the level detector output voltage.
LSL[2:0]
Setting of level DAA slope.
These 3 bits determine the steepness of the
level detector output voltage.
2 to 0
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