TDA3857 Philips Semiconductors, TDA3857 Datasheet - Page 8

• Manufacturer Part Number: TDA3857
• Description: Quasi-split sound processor with two FM demodulators
• Manufacturer: Philips Semiconductors

Philips Semiconductors
June 1994
I
I
THD
V
S/N(W)
B
V
V
Tracking Automatic Frequency Control (AFC) of the vision carrier reference circuit
V
F
S
AF signal switches
input signals: FM intercarrier into pin 13
the output signals are related to the signals described in the demodulator part.
V
dV
6, 7 (M)
6, 7
SYMBOL
G
G
TR
o (RMS)
AM
CR
3
14, 16
o 12
o
Quasi-split sound processor with two FM demodulators
/V
6
AF2min
AF2max
omute
allowed AC current of emitter output
(peak value)
maximum allowed DC output current
total harmonic distortion
AF output signal (RMS value)
AM suppression
weighted signal-to-noise ratio
AF bandwidth ( 3 dB)
crosstalk attenuation (pins 6-7)
adjustment voltage for AF2
gain for minimum V
gain for maximum V
DC voltage (pins 14 and 16)
tracking output voltage (pin 12)
tracking reducing factor for
AFC steepness (open loop) for
no signal in pin 17 (AF2)
AF2 mute attenuation (pin 6)
DC jump at the AF2 output
lower limit
upper limit
black picture
white test picture
50% grey picture
black picture
white test picture
50% grey picture
PARAMETER
out
out
note 3
THD = 1.5%
1 kHz; m = 0.3
CCIR468-3
note 4
minimum output signal
maximum output signal
V
V
note 5
see part FM demodulator
switching to Mute
3
3
= 0 V
= 5 V
8
CONDITIONS
1.25
48
64
100
60
1.0
V
70
1.5
P
MIN.
3.3
0.5
54
68
70
0
5
1.5
1.8
9
4
6
5
TYP.
2.5
8
3
5.5
Product specification
1.0
20
V
25
MAX.
TDA3857
1.5
2
P
1 V
mA
mA
%
V
dB
dB
Hz
kHz
dB
V
V
dB
dB
V
mV/kHz
mV/kHz
mV/kHz
dB
mV
UNIT