TEF6901AH/V2-T NXP Semiconductors, TEF6901AH/V2-T Datasheet - Page 70
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TEF6901AH/V2-T
Manufacturer Part Number
TEF6901AH/V2-T
Description
Tuners TUNER ASP ONECHIP
Manufacturer
NXP Semiconductors
Datasheet
1.TEF6901AHV2-T.pdf
(107 pages)
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
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NXP Semiconductors
TEF6901A_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 — 20 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 39
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
TEF6901A
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 39
recovery
70 of 107
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