TEF6901AH/V2-T NXP Semiconductors, TEF6901AH/V2-T Datasheet - Page 37

• Manufacturer Part Number: TEF6901AH/V2-T
• Description: Tuners TUNER ASP ONECHIP
• Manufacturer: NXP Semiconductors

Specifications of TEF6901AH/V2-T

• Mounting Style: SMD/SMT
• Package / Case: PQFP-64
• Minimum Operating Temperature: - 40 C
• Maximum Operating Temperature: + 85 C
• Lead Free Status / RoHS Status: Compliant
• Other names: TEF6901AH/V2,518

NXP Semiconductors
TEF6901A_3
Product data sheet
8.2.5 Write mode: data byte AGC
Table 34.
Table 35.
Bit
7
6
5 and 4
3 and 2
1
0
AGCSW
7
0
AGC - format of data byte 04h with default setting (buffered)
AGC - data byte 04h bit description
Symbol
AGCSW
IFGAIN
-
AGC[1:0]
KAGC
LODX
IFGAIN
6
0
Description
RF AGC switch
IF gain
reserved; 0 = normal operation
setting of RF AGC threshold voltage
FM mixer 1 input voltage (RMS value)
AM mixer 1 input voltage (peak-to-peak value)
keyed AGC
FM mode
AM mode
FM: local switch
AM: trigger signal from AM IF noise blanker to AM audio noise blanker
Rev. 03 — 20 March 2008
0 = no control of unused RF AGC
1 = unused AM RF AGC PIN diode at FM mode, or unused FM RF
AGC PIN diode at AM mode is supplied with a constant current for fixed
attenuation
0 = IF gain for low loss 10.7 MHz filter
1 = increased IF gain (3 dB) for high loss 10.7 MHz filter
00 = 24 mV
01 = 17 mV
10 = 12 mV
11 = 9 mV
00 = 1000 mV
01 = 700 mV
10 = 500 mV
11 = 350 mV
0 = keyed AGC off
1 = keyed AGC on; the AGC start level is shifted to a value 10 dB above
the standard AGC start level, when the level voltage of the wanted RF
signal is below the threshold level voltage for narrow-band AGC
0 = RF cascode AGC enabled with full range
1 = RF cascode AGC enabled with limited range
0 = standard operation (DX)
1 = forced FM RF AGC attenuation (LOCAL)
0 = trigger signal active for low modulation (m < 0.05) only
1 = trigger signal always active, independent of modulation
5
0
4
0
AGC1
3
0
AGC0
2
0
TEF6901A
Integrated car radio
KAGC
© NXP B.V. 2008. All rights reserved.
1
0
LODX
37 of 107
0
0