TDA9874A Philips Semiconductors, TDA9874A Datasheet - Page 17

• Manufacturer Part Number: TDA9874A
• Description: Digital TV sound demodulator/decoder
• Manufacturer: Philips Semiconductors

Philips Semiconductors
9
V
parameters in accordance with system A2; NICAM in accordance with “EBU NICAM 728 specification” ; 1 k
measurement source resistance for AF inputs; V
settings according to note 1 with external components of Fig.9; unless otherwise specified.
1999 Dec 03
Digital supplies
V
V
I
V
V
V
I
Power failure register
V
Demodulator supplies and references
V
V
I
V
V
V
I
Audio supplies and references
V
V
I
V
V
Z
DDD1
DDD3
DDA3
ref1(sink)
DDA1
DD
(Vref2-VDDA3)
DDD1
SSD1
SSD2
DDD3
SSD3
pfr
DDA3
SSA3
DEC1
SSA2
ref1
DDA1
SSA1
SSA4
ref2
SYMBOL
Digital TV sound demodulator/decoder
CHARACTERISTICS
= 5 V; T
amb
digital supply voltage 1
digital ground supply 1
digital supply current 1
digital ground supply 2
digital supply voltage 3
digital ground supply 3
digital supply current 3
power failure response voltage
analog supply voltage 3,
demodulator part
analog ground supply 3,
demodulator part
analog supply current 3,
demodulator part
analog supply decoupling
voltage for front-end
analog ground supply 2
analog reference voltage,
demodulator part
V
analog supply voltage 1,
operational amplifiers
analog ground supply 1,
operational amplifiers
analog supply current 1,
operational amplifiers
analog ground supply 4, audio
DAC part
reference voltage 2, audio DACs
and operational amplifiers
impedance V
= 25 C; settings in accordance with B/G standard; FM deviation 50 kHz; f
ref1
sink current
PARAMETER
ref2
to V
DDA3
SIF
V
V
V
V
V
V
V
V
referenced to V
V
DDD1
DDD1
DDD3
DDD3
DDA3
DDA3
DDA1
DDA1
SSA1
= 300 mV (p-p); AGCOFF = 0; AGCSLOW = 1; level and gain
= 5.5 V
= 5.0 V
= 5.5 V
= 5.0 V
= 5.5 V
= 5.0 V
= 5.5 V; SYSCLK off
= 5.0 V; SYSCLK off
CONDITIONS
17
DDA1
and
4.5
40
42
4.5
9
8
4.5
24
24
4.5
3
3
MIN.
5.0
0.0
59
59
0.0
5.0
0.0
17
16
4.0
5.0
0.0
32
32
3.3
0.0
2
200
5.0
0.0
6
5
0.0
50
20
mod
TYP.
Preliminary specification
= 1 kHz; FM sound
TDA9874A
5.5
74
75
5.5
21
20
5.5
40
40
5.5
10
10
MAX.
V
V
mA
mA
V
V
V
mA
mA
V
V
V
mA
mA
V
V
V
V
V
mA
mA
V
%
k
UNIT
A