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PDF TDA9615H Data sheet ( Hoja de datos )
| Número de pieza | TDA9615H | |
| Descripción | Audio processor for VHS hi-fi | |
| Fabricantes | NXP Semiconductors | |
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INTEGRATED CIRCUITS
DATA SHEET
TDA9615H
Audio processor for VHS hi-fi
Preliminary specification
File under Integrated Circuits, IC02
1997 Jun 16
1 page  
Philips Semiconductors
Audio processor for VHS hi-fi
Preliminary specification
TDA9615H
handbook, full pagewidth
TUNL 1
TUNR 2
CINL 3
CINR 4
EXT1L 5
EXT1R 6
EXT2L 7
EXT2R 8
AUXL 9
AUXR 10
RFCAGC 11
TDA9615H
33 DCREFR
32 EMPHR
31 DCR
30 DETR
29 Vref
28 Iref
27 AGND
26 DETL
25 DCL
24 EMPHL
23 DCREFL
MGK470
Fig.2 Pin configuration.
FUNCTIONAL DESCRIPTION
An overview of input/output selections is given in Figs 3 to 5.
Full control of the TDA9615H is accomplished via the 2-wire I2C-bus. Up to 400 kbits/s bus speed can be used, in
accordance with the I2C-bus fast-mode specification. The detailed functional description can be found in
Chapter “I2C-bus protocol”.
1997 Jun 16
5
5 Page 
Philips Semiconductors
Audio processor for VHS hi-fi
Preliminary specification
TDA9615H
Control byte; subaddress 00 (hi-fi and general control)
Table 5 Bits of control byte
BIT
AFM
DOC
SHH
DETH
NTSC
MUTE
STBP
STBA
DESCRIPTION
audio FM mode; see Table 6
dropout cancel; see Table 6
sample-and-hold high-state; see Table 6
detector high; see Table 6
NTSC television system standard; see Table 7
power mute; see Table 8
standby mode passive; see Table 9
standby mode active; see Table 9
Table 6 Bits AFM, DOC, SHH and DETH
AFM
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
DOC
X(1)
0
1
X(1)
X(1)
X(1)
X(1)
X(1)
0
0
0
0
1
1
1
1
SHH
X(1)
X(1)
X(1)
0
1
X(1)
X(1)
X(1)
0
0
1
1
0
0
1
1
DETH
MODE
REMARKS
X(1) playback(2)
X(1) playback
DOC off
X(1) playback
DOC on
X(1) playback
X(1) playback
sample-and-
hold time = 6 µs
sample-and-
hold time = 8 µs
0 playback
detect = fast
1 playback
detect = slow
X(1) record/loop-through
0 loop-through(3)(4)
1 record
0 dB mix
0 record
6 dB mix
1 record
8 dB mix
0 record
9.5 dB mix
1 record
11 dB mix
0 record
12.5 dB mix
1 record
13.5 dB mix
DESCRIPTION
hi-fi circuit in playback mode
no dropout cancelling
dropout cancelling active
headswitch noise cancel time is 6 µs
headswitch noise cancel time is 8 µs
hi-fi detector timing: fast mode
hi-fi detector timing: slow mode
hi-fi circuit in record/loop-through mode
no FM output signal (EE mode)
0 dB FM output carrier ratio (1 : 1)
6 dB FM output carrier ratio (1 : 2)
8 dB FM output carrier ratio (1 : 2.5)
standard 9.5 dB FM output carrier ratio (1 : 3)
11 dB FM output carrier ratio (1 : 3.5)
12.5 dB FM output carrier ratio (1 : 4.2)
13.5 dB FM output carrier ratio (1 : 4.7)
Notes
1. X = don’t care.
2. Auto-normal function: if during hi-fi ‘playback’ mode no FM carrier is detected at FMIN (pin 37) the ‘Normal’ mode
audio signal (LININ; pin 21) is automatically selected by the output select function.
a) Hi-fi carrier detection time (i.e. auto-normal release time) can be selected via bit DETH:
‘fast’ mode: 1 to 2 HID periods (33 to 66 ms NTSC, 40 to 80 ms PAL)
‘slow’ mode: 7 to 8 HID periods (233 to 267 ms NTSC, 280 to 320 ms PAL).
b) The status of hi-fi detection can be monitored via the I2C-bus; see bit AUTN of the read byte (see Table 31).
c) If muting is required instead of automatic selection of the ‘Normal’ mode audio signal the normal input level
function should be set to mute; see bits NIL3 to NIL0 of the select byte.
1997 Jun 16
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet TDA9615H.PDF ] | |
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