TEF6901AH/V2,518 NXP Semiconductors, TEF6901AH/V2,518 Datasheet - Page 7

• Manufacturer Part Number: TEF6901AH/V2,518
• Description: IC INTEGRATED CAR RADIO 64-QFP
• Manufacturer: NXP Semiconductors

Specifications of TEF6901AH/V2,518

• 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: 64-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: 935281178518; TEF6901AH/V2-T; TEF6901AH/V2-T

NXP Semiconductors
7. Functional description
TEF6901A_3
Product data sheet
7.1 FM mixer 1
7.2 FM RF AGC
7.3 FM mixer 2
7.4 FM IF2 channel filter
Table 3.
The FM quadrature mixer 1 converts FM RF (65 MHz to 108 MHz) to an IF frequency of
10.7 MHz. The FM mixer provides image rejection and a large dynamic range. Low and
high injection Local Oscillator (LO) can be selected via the I
AGC detection at the FM front-end mixer input with programmable threshold. When the
threshold is exceeded, the PIN diode drive circuit sources a current to an external PIN
diode circuit, keeping the RF signal level constant. Keyed AGC function is selectable via
the I
diode drive circuit can optionally deliver a fixed current; this local mode can be used for
search tuning on absolute RF levels. In AM mode, the FM AGC PIN diode drive circuit can
be set to source a fixed current into the external FM PIN diode circuitry.
The FM quadrature mixer 2 converts 10.7 MHz IF1 to 450 kHz IF2 and includes image
rejection with the integrated channel filter. Two gain settings can be selected to
compensate for high ceramic filter insertion loss.
The order and dynamic range of the FM IF2 channel filter is designed for operation with
only one external ceramic filter. The filter characteristic is optimized to combine high
selectivity with low distortion. The bandwidth of the filter can be set to a range of fixed
settings or automatically via the bandwidth control algorithm. When the automatic mode is
selected the bandwidth depends on the signal conditions.
Symbol
IND
INC
INBR
INBL
INAC
INAR
INAL
MPXAMIN
MPXAMOUT
VCCVCO
VCOFDB
VCOTNK
VCOGND
2
C-bus and uses the in-band level information derived from the limiter. The AGC PIN
Pin description
Pin
52
53
54
55
56
57
58
59
60
61
62
63
64
Rev. 03 — 20 March 2008
Description
audio input D, signal input
audio input C, common mode or signal input
audio input B, right channel
audio input B, left channel
audio input A, left channel inverted (or other options)
audio input A, right channel
audio input A, left channel
MPX and AM audio input to radio processing
MPX and AM audio output from tuner part
Voltage-Controlled Oscillator (VCO) supply voltage
VCO feedback
VCO tank circuit
VCO ground
…continued
2
C-bus.
TEF6901A
Integrated car radio
© NXP B.V. 2008. All rights reserved.
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