tda9870ah NXP Semiconductors, tda9870ah Datasheet - Page 24

• Manufacturer Part Number: tda9870ah
• Description: Digital Tv Sound Processor Dtvsp
• Manufacturer: NXP Semiconductors

Philips Semiconductors
1999 Dec 20
SIF1 and SIF2 analog inputs
V
V
AGC
f
R
C
C/N
Demodulator performance
THD + N
S/N
B
f
S/N
i
res
f
f
SIF(max)(p-p)
SIF(min)(p-p)
ct
cs(dual)
cs(stereo)
AM
i
i
Digital TV Sound Processor (DTVSP)
SYMBOL
FM
FM(FS)
3dB
AM
FM
maximum composite SIF input
voltage for clipping
(peak-to-peak value)
minimum composite SIF input
voltage for lower limit of AGC
(peak-to-peak value)
AGC range
input frequency
input resistance
input capacitance
FM deviation
FM deviation full-scale level
FM carrier-to-noise ratio
crosstalk attenuation
SIF1 to SIF2
total harmonic distortion plus
noise
signal-to-noise ratio
frequency response
20 Hz to 14 kHz
dual signal channel separation note 4
stereo channel separation
AM suppression for FM
AM demodulation
3 dB bandwidth
PARAMETER
SIF input level adjust 0 dB
SIF input level adjust 10 dB
SIF input level adjust 0 dB
SIF input level adjust 10 dB
AGCLEV = 0
B/G standard; THD < 1%
terrestrial FM; level adjust
0 dB
N
white noise for S/N = 40 dB;
“CCIR468” ; quasi peak
f
from FM source to any
output; V
low-pass filter
SC1 from FM source to any
output; V
“CCIR468” ; quasi peak
SC2 from FM source to any
output; V
“CCIR468” ; quasi peak
from FM source to any
output
from FM to any output;
f
pre-emphasis and
de-emphasis
note 5
AM: 1 kHz, 30% modulation;
reference: 1 kHz, 50 kHz
deviation
SIF level 100 mV (RMS);
54% AM; 1 kHz AF;
“CCIR468” ; quasi peak
i
ref
FM
= 4 to 9.2 MHz; note 3
= 1 kHz; inclusive
bandwidth = 6 MHz;
CONDITIONS
o
o
o
24
= 1 V (RMS) with
= 1 V (RMS);
= 1 V (RMS);
4
10
50
64
60
14.5
65
40
50
36
100
150
MIN.
941
2976
59
188
24
7.5
77
0.3
70
66
15
70
45
45
2
TYP.
Product specification
TDA9870A
9.2
11
0.5
MAX.
mV
mV
mV
mV
dB
MHz
k
pF
kHz
kHz
dB
%
dB
dB
kHz
dB
dB
dB
dB
dB
dB
------ -
Hz
UNIT