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PDF TDA9859 Data sheet ( Hoja de datos )
| Número de pieza | TDA9859 | |
| Descripción | Universal hi-fi audio processor for TV | |
| Fabricantes | NXP Semiconductors | |
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INTEGRATED CIRCUITS
DATA SHEET
TDA9859
Universal hi-fi audio processor for
TV
Preliminary specification
File under Integrated Circuits, IC02
1997 Sep 01
1 page  
Philips Semiconductors
Universal hi-fi audio processor for TV
Preliminary specification
TDA9859
FUNCTIONAL DESCRIPTION
The TDA9859 consists of the following functions:
• Source select switching block
• Loudspeaker channel with effect controls
• Two port outputs for general purpose
• I2C-bus control.
Source select switching block
The TDA9859 selects and switches the input signals from
three stereo or six mono sources MAIN, AUX and SCART
(see Fig.1) to the outputs SCART and loudspeaker
(crossbar-switching; Table 4). The main channel (LINE
outputs) is looped outside the circuit (from pins 9 and 24 to
pins 10 and 23), so signals can be used as LINE output or
a surround sound decoder can be inserted.
Loudspeaker channel
Volume control is divided into volume control common and
volume control left/right. The common part
(−40 to +15 dB) controls the left and right channels
simultaneously; the left/right part (−23 to 0 dB) controls the
volume of left and right channels independently. Treble
control provides a control range from −12 to +12 dB and
bass control from −12 to +15 dB. Extended bass control
can be provided by an external T-network (see Fig.1) from
−15 to +19 dB (2 dB steps).
Effect controls
‘Linear stereo’, ‘stereo with spatial effect (30% or 52%
anti-phase crosstalk)’ and ‘forced mono with or without
pseudo-stereo effect’ are controlled by three bits. A muting
of 85 dB is provided.
I2C-bus control
All settings of control are stored in subaddress registers.
Data transmission is simplified by auto-incrementing the
subaddresses. The on-chip Power-on reset sets the mute
bit to active, so both the SCART and the loudspeaker
outputs are muted.
The muting can be switched off by writing a ‘0’ (non-muted)
into the mute control bits.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
PARAMETER
VP supply voltage (pin 6)
Vn voltage on all pins, ground excluded
IO output current
at LOUT and SCOUT pins
at port output pins
Ptot
Tamb
Tstg
Ves
total power dissipation
operating ambient temperature
storage temperature
electrostatic handling for all pins; note 1
electrostatic handling for all pins; note 2
MIN.
0
0
MAX.
10
VP
− 2.5
− 1.5
− 850
0 70
−25 +150
− ±300
− ±2000
Notes
1. Equivalent to discharging a 200 pF capacitor through a 0 Ω series resistor (Machine Model).
2. Equivalent to discharging a 100 pF capacitor through a 1.5 kΩ series resistor (Human Body Model).
UNIT
V
V
mA
mA
mW
°C
°C
V
V
THERMAL CHARACTERISTICS
SYMBOL
PARAMETER
Rth(j-a)
thermal resistance from junction to ambient
CONDITIONS
in free air
VALUE
60
UNIT
K/W
1997 Sep 01
5
5 Page 
Philips Semiconductors
Universal hi-fi audio processor for TV
Preliminary specification
TDA9859
Table 3 Function of the bits in Table 2
BITS
V00 to V05
VL0 to VL4
VR0 to VR4
BA0 to BA4
TR0 to TR3
I10 to I13
I20 to I23
MU1 and MU2
EF1, EF2 and ST
P1 and P2
FUNCTION
volume control common for loudspeaker channel; see Table 9
volume control for left loudspeaker channel; see Table 6
volume control for right loudspeaker channel; see Table 6
bass control for left and right loudspeaker channels; see Table 7
treble control for left and right loudspeaker channels; see Table 8
input selection for SCART channels; see Table 4
input selection for loudspeaker channels; see Table 4
mute control bits (MU1 for SCART channel, MU2 for loudspeaker channel)
0 = channel not muted
1 = channel muted
effect control bits for loudspeaker channel; see Table 5
control bits for ports P1 (pin 2) and P2 (pin 31)
control bit = 0: ports P1 = LOW
control bit = 1: ports P1 = HIGH
Table 4 Input selection
INPUT
BITS OF DATA BYTE 8 AND 9
HEX
D7
D6
D5
D4
D3
D2
D1
D0
AUX LEFT
XB(1)
(1)
MU
(1)
(1)
1
0
1
1
AUX RIGHT
X9(1)
(1)
MU
(1)
(1)
1
0
0
1
AUX STEREO
X7(1)
(1)
MU
(1)
(1)
0
1
1
1
SCART LEFT
XA(1)
(1)
MU
(1)
(1)
1
0
1
0
SCART RIGHT
X5(1)
(1)
MU
(1)
(1)
0
1
0
1
SCART STEREO
X6(1)
(1)
MU
(1)
(1)
0
1
1
0
MAIN LEFT
XC(1)
(1)
MU
(1)
(1)
1
1
0
0
MAIN RIGHT
XD(1)
(1)
MU
(1)
(1)
1
1
0
1
MAIN STEREO
X8(1)
(1)
MU
(1)
(1)
1
0
0
0
Note
1. Byte 8 (SCART channels): The value of X depends on MU1 and control bits P1 and P2.
Byte 9 (loudspeaker channels): see Table 5 for the programming of these bits. The value of X depends on the
selected effects and MU2.
1997 Sep 01
11
11 Page | ||
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| PDF Descargar | [ Datasheet TDA9859.PDF ] | |
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