tda8740h NXP Semiconductors, tda8740h Datasheet - Page 10

• Manufacturer Part Number: tda8740h
• Description: Satellite Sound Circuit With Noise Reduction
• Manufacturer: NXP Semiconductors

Philips Semiconductors
AC CHARACTERISTICS
All voltages referenced to ground at pins 9 and 34 (4 and 30). Measured in test circuit Fig.4; V
f
HF level at pin 18 (14): 40 mV (RMS); HF level at selected secondary inputs: 20 mV (RMS); MCS = logic 0
[V
October 1994
MOD
Main channel - HF input pin 18 (14) and limiter
V
V
R
Main channel - PLL FM demodulator and DC decoupling amplifier
f
R
V
R
Main channel - overall performance (output selector in position 4)
V
UBM
THD
S/N(A)
R
MUTE
SVRR
V
------------------------------ -
CCO
V
7
f
V
S/M
IN3(rms)
IN3(rms)
CDM
OM,OR,OL
Satellite sound circuit with noise reduction
IN3
CDM
CCM
OM,OR,OL
OM
OM 15 kHz
OM 1 kHz
(V
CDM
= 1 kHz; f
2
) = 0 V]; SCD = logic 0 [V
att
SYMBOL
OM
= 6.5 MHz; f
input sensitivity (RMS value)
input signal level (RMS value)
input resistance
free-running frequency
lock range of PLL
output resistance for 50 s
de-emphasis pin 20 (16)
output voltage pin 20 (16)
spread of PLL output voltage
over lock range pin 20 (16)
input resistance of output
amplifier pin 21 (17)
output voltage pins 23, 24 and
25 (19, 20 and 21)
output voltage unbalance pins
23, 24, 25 (19, 20, 21)
total harmonic distortion
signal-to-noise ratio
15 kHz frequency response
with respect to 1 kHz pin 23
(19)
output resistance pins 23, 24
and 25 (19, 20 and 21)
crosstalk attenuation from
secondary channels to main
mute attenuation
supply voltage ripple rejection
M
11
= 46 kHz; f
(V
PARAMETER
6
) = 0 V]; unless otherwise specified.
S1
= f
S2
= 27 kHz (reference levels); f
10
S/N(A) = 40 dB
MCS = logic 1
note 1
MCS = logic 1; note 1
all PLLs locked
output selector in
position 4
all PLLs locked
A-weighted; all PLLs
locked
no de-emphasis
connected
note 2
output selector in
position 7
V
RR
= 100 mV; f
CONDITIONS
i
= 70 Hz
TDA8740; TDA8740H
OS1
5.5
10.0
1.24
95
62
92
74
MIN.
= 7.02 MHz; f
18.5
9
0.5
0.5
P
1.0
15
6.5
10.7
1.5
150
0.1
70
0
125
74
35
= 12 V; T
TYP.
16.0
6
Product specification
OS2
2.0
200
7.5
11.5
1.7
200
+0.5
0.5
150
MAX.
14.5 dBV
1
4
0.5
amb
= 7.20 MHz;
= 25 C;
mV
mV
k
MHz
MHz
MHz
MHz
k
dB
k
dBV
dB
%
dB
dB
dB
dB
dB
UNIT