TEF6902AH/V2 NXP Semiconductors, TEF6902AH/V2 Datasheet - Page 69

• Manufacturer Part Number: TEF6902AH/V2
• Description: Tuners TUNER ASP ONECHIP
• Manufacturer: NXP Semiconductors

Specifications of TEF6902AH/V2

• 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: TEF6902AH/V2,557

NXP Semiconductors
TEF6902A_3
Product data sheet
Table 98.
[1]
Table 99.
[1]
Table 100. Loudness start
Bit
3
2 to 0
HTC2
0
0
0
0
1
1
1
1
LDS2
0
0
0
0
1
1
1
1
The VU-meter mode can be used with external sources only. When the VU-meter mode is active, the radio
quality detection of USN, MOD and offset is limited to AF update tuning only. During VU-meter mode the
bits MOD[4:0] indicate the external source input amplitude. The FM dynamic bandwidth control is disabled
and a fixed bandwidth of 113 kHz is defined. However, other fixed bandwidth settings are available by
DYN = 0 and the setting of BW; data byte 0h (see
control. VU-meter mode is automatically activated when audio compression is on (COMP = 1).
Setting HTC[2:0] is also in use for setting the timing of weak signal high cut control during radio operation.
LOUDNESS - data byte 17h bit description
VU-meter timing; HTC[2:0] of data byte 0Bh; TIMING
Symbol
LDHB
LDS[2:0]
HTC1
0
0
1
1
0
0
1
1
LDS1
0
0
1
1
0
0
1
1
Description
loudness high boost; see
loudness start setting; loudness start defines the volume setting below
which loudness control is activated; see
Rev. 03 — 19 March 2008
0 = loudness control is limited to bass gain
1 = loudness controls bass gain and treble gain
HTC0
0
1
0
1
0
1
0
1
LDS0
0
1
0
1
0
1
0
1
Table
Figure 37
28). See
…continued
t
0.02 s
0.02 s
0.02 s
0.02 s
0.02 s
0.02 s
0.02 s
0.02 s
Start of loudness at volume setting
attack
12 dB
16 dB
20 dB
24 dB
28 dB
32 dB
36 dB
40 dB
Table 99
Table 100
[1]
for compression recovery timing
TEF6902A
Integrated car radio
and
© NXP B.V. 2008. All rights reserved.
t
0.03 s
0.06 s
0.2 s
5 s
0.6 s
10 s
1 s
2 s
Figure 37
recovery
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