TEF6903AH/V5S,518 NXP Semiconductors, TEF6903AH/V5S,518 Datasheet - Page 38
TEF6903AH/V5S,518
Manufacturer Part Number
TEF6903AH/V5S,518
Description
IC CAR RADIO SGL CHIP CIRC 80QFP
Manufacturer
NXP Semiconductors
Specifications of TEF6903AH/V5S,518
Modulation Or Protocol
AM, FM, WB
Applications
AM/FM Radio Receiver
Current - Receiving
102mA
Data Interface
PCB, Surface Mount
Antenna Connector
PCB, Surface Mount
Voltage - Supply
8 V ~ 9 V
Operating Temperature
-40°C ~ 85°C
Package / Case
80-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Frequency
-
Sensitivity
-
Memory Size
-
Data Rate - Maximum
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
935288823518
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NXP Semiconductors
TEF6903A_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 mode: local switch
AM mode: trigger signal from AM IF noise blanker to AM audio noise
blanker
Rev. 03 — 3 April 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 only (m < 0.05)
1 = trigger signal always active, independent of modulation
5
0
4
0
AGC1
3
0
AGC0
2
0
TEF6903A
Integrated car radio
KAGC
© NXP B.V. 2008. All rights reserved.
1
0
LODX
38 of 110
0
0
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