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PDF TDA9605 Data sheet ( Hoja de datos )

Número de pieza TDA9605
Descripción Audio processor with head amplifier for VHS hi-fi
Fabricantes NXP Semiconductors 
Logotipo NXP Semiconductors Logotipo



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INTEGRATED CIRCUITS
DATA SHEET
TDA9605H
Audio processor with head amplifier
for VHS hi-fi
Product specification
File under Integrated Circuits, IC02
1999 Apr 14

1 page




TDA9605 pdf
Philips Semiconductors
Audio processor with head amplifier for VHS hi-fi
Product specification
TDA9605H
5 PINNING
SYMBOL PIN
DESCRIPTION
SAP
TUNL
TUNR
CINL
1 tuner input mono
2 tuner input left
3 tuner input right
4 CINCH input left
CINR
EXT1L
EXT1R
EXT2L
EXT2R
5 CINCH input right
6 external 1 input left
7 external 1 input right
8 external 2 input left
9 external 2 input right
AUXL
10 auxiliary input left
AUXR
11 auxiliary input right
RFCAGC 12 RF converter AGC timing connection
RFCOUT
MUTEC
MUTEL
LINEL
13 RF converter output
14 mute for RF converter output
15 mute for line output left
16 line output left
LINER
MUTER
DECL
DECR
17 line output right
18 mute for line output right
19 decoder output left
20 decoder output right
LINOUT
LININ
DCFBL
EMPHL
21 linear audio output
22 linear audio input
23 DC feedback noise reduction
connection left
24 emphasis noise reduction connection
left
SYMBOL PIN
DESCRIPTION
DCL
25 DC decoupling noise reduction
connection left
DETL
26 detector noise reduction connection
left
GND
27 ground
Iref
Vref
DETR
28 reference standard current connection
29 reference voltage connection
30 detector noise reduction connection
right
DCR
31 DC decoupling noise reduction
connection right
EMPHR 32 emphasis noise reduction connection
right
DCFBR
33 DC feedback noise reduction
connection right
VCC
PBIN2
34 power supply
35 head 2 playback input
RECOUT 36 recording current output
PBIN1
37 head 1 playback input
HMSW 38 head amplifier mode switch connection
GNDH 39 ground of head amplifier
VCCH
RMHID
SDA
SCL
40 power supply of head amplifier
41 record-mute mode or head
identification input
42 I2C-bus data input/output
43 I2C-bus clock input
ENVOUT 44 HF or AF envelope output
1999 Apr 14
5

5 Page





TDA9605 arduino
Philips Semiconductors
Audio processor with head amplifier for VHS hi-fi
Product specification
TDA9605H
Table 2 Selection of recording modes
RM
SIGNAL
LEVEL ON
PIN RMHID
RECORD MODE
LOW
lower than 2.35 V record or record-mute
mode as defined by
I2C-bus control
HIGH
higher than 2.65 V record-mute mode
6.4.3 RECORD MODE
The record mode is selected by setting bit AFM = 1 and
setting bits DOC, SHH and DETH from logic 001 to 111
and switching the RM control signal to LOW-level.
During the record mode actual recording is activated and
the recording current is output on pin RECOUT
(see Fig.6). Pins PBIN2 and PBIN1 form a connection to
the 5 V head amplifier supply voltage (VCCH). Pin HMSW
is internally connected to pin RECOUT and the external
capacitor has no function in this mode.
The desired carrier mix ratio is set via I2C-bus control
bits DOC, SHH and DETH. A wide selection of recording
currents is available to fit different head and head
transformer specifications and are set via bits HAC2,
HAC1, HAC0 and range bit HRL. The setting of the carrier
mix ratio does not change the selected recording current.
The DC bias current on pin RECOUT is changed
proportional to the selected recording current for
optimizing the performance and minimizing the power
consumption for each recording current selected.
A Boucherot damping circuit is connected between
pin HMSW and ground to prevent head current resonance
peaking. A capacitor of 10 nF and a resistor of 470 are
specified in Fig.14, but the component values are not
critical.
6.4.4 HEAD AMPLIFIER POWER SUPPLY AND GROUND
The head amplifier is supplied via a separate 5 V supply
(pin VCCH) and ground (pin GNDH).
A capacitor of 100 nF should be placed close to the device
between pins VCCH and GNDH for proper decoupling of
the power supply.
The head amplifier ground (pin GNDH) should be
connected to the main ground (pin GND).
handbook, full pagewidth
AH2
AH1
PBIN2 35
35 k
RECOUT 36
GNDH
PBIN1 37
35 k
HMSW 38
GNDH
GNDH
TDA9605H
AH2
AH1
VCCH
PBIN2 35
RECOUT 36
VCCH
PBIN1 37
HMSW 38
5
GNDH
TDA9605H
MGR841
a. Playback mode and record-mute mode.
b. Record mode.
Fig.6 Simplified circuit diagrams of the head amplifier modes.
1999 Apr 14
11

11 Page







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