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Número de pieza | TDA9840 | |
Descripción | TV and VTR stereo/dual sound processor with digital identification and I2C-bus control | |
Fabricantes | NXP Semiconductors | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de TDA9840 (archivo pdf) en la parte inferior de esta página. Total 28 Páginas | ||
No Preview Available ! INTEGRATED CIRCUITS
DATA SHEET
TDA9840
TV and VTR stereo/dual sound
processor with digital identification
and I2C-bus control
Product specification
Supersedes data of 1995 Mar 21
File under Integrated Circuits, IC02
1998 Jul 03
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L+R , A
2
Vi 1
2.2 µF
7
250 mV RMS
(from 1st SC)
−2 dB
10 k Ω
0 to 4.5 dB
40 kΩ
250 mV RMS
(from 2nd SC)
40 kΩ
Vi 2 R, B 2.2 µF
8 −2 dB
10 k Ω
0 to 4.5 dB
27 k Ω
level
stereo
CD1
10 nF
±5%
5 kΩ
CD2
10 nF
±5%
15
17
0 to −0.4 dB
A/MONO
10 k Ω
10 k Ω
L/A/MONO
250 mV RMS
L
R/B
5 kΩ 250 mV RMS
TDA9840
Vi 3 Vi 4 500 mV RMS
2.2 µF
9
25 k Ω
25 k Ω
25 k Ω
2.2 µF
10
25 k Ω
6 dB
500 mV RMS 14
6 dB 500 mV RMS 13
6 dB 500 mV RMS 12
6 dB 500 mV RMS 11
mute
Vo 1
MAIN
Vo 2
Vo 3
SCART
Vo 4
180 pF
1.8 nF
±2%
tanδ
≤ 0.01
CDCL
Vi pil 5
4.7 mH
±5%
Q0 = 25
4
100 nF
CAGC
CLP
2
10 µF
3
10 nF
LEVEL AND
STEREO
ADJUSTMENT
25 k Ω
25 k Ω
Input and output levels are nominal values.
They are related to the SCART norm.
(AM: m = 0.54, FM: ∆f = ±27 kHz).
DIGITAL
PLL
DIGITAL PLL
AND
DEMODULATOR
DIGITAL PLL
AND
DEMODULATOR
DIGITAL
DUAL bit
INTEGRATOR
I2C-BUS
CONTROL
DIGITAL
INTEGRATOR
STEREO
bit
20 SCL
1 SDA
OSCILLATOR
Vref
GENERATION
OF
REFERENCE
VOLTAGES
POWER-ON
RESET
CONTROL
LOGIC
19
XTAL
10 MHz
6
1/2 VP
Cref
100 µF /
16 V
18
VP
16
GND
MBE458
The components of the external LC band-pass filter have the
following order-No.:
Philips Germany only No: 4312 020 17525 or Fastron Sdn.
Bha., Malaysia type SMCC 472 J for L = 4.7 mHz (±5%)
Philips Components No: 2222 429 71802, C = 1.8 nF (±2%).
Fig.2 Block diagram of the bipolar TV/VTR-stereo decoder with fixed coil (alignment-free).
5 Page Philips Semiconductors
TV and VTR stereo/dual sound processor
with digital identification and I2C-bus control
Product specification
TDA9840
SYMBOL
PARAMETER
CONDITIONS
MIN.
PXTAL
VOSC(p-p)
level of drive in operation
oscillator operating voltage
(peak-to-peak value)
−
500
Pilot processing
Vi pil(rms)
Ri pil
m
∆fpil
tpil
fLP
R3
V4(rms)
QL
tacqui AGC
pilot input voltage level at pin 5 unmodulated
(RMS value)
pilot input resistance
modulation depth
AM
pilot PLL pull-in frequency
range (referred to
fpil = 54.6875 kHz)
fω = 9.988 MHz
lower side
upper side
fω = 10.008 MHz
lower side
upper side
fω = 10.028 MHz
lower side
upper side
pilot PLL pull-in time
low-pass frequency response −3 dB
low-pass output resistance
identification threshold voltage
(RMS value)
loaded quality factor of
resonance circuit
high sensitivity
loaded quality factor of
resonance circuit with fixed
coil
sensitivity loss
2 to 3 dB; see Fig.2
AGC acquisition time
Vi pil(rms) switched from
0 to 100 mV RMS
value
5
500
25
−405
192
−296
302
−188
411
0
450
18.75
−
40
−
−
Identification (internal functions)
Vi tuner
C/N
H
identification voltage sensitivity note 7
(pin 5)
pilot carrier-to-noise ratio for note 8
start of identification
hysteresis
note 7
−
−
−
TYP.
−
550
−
1000
50
−
−
−
−
−
−
−
600
25
−
−
12
−
28
33
−
MAX.
5
600
100
−
75
−405
192
−296
302
−188
411
1.7
750
31.25
70
50
−
0.1
−
−
2
UNIT
µW
mV
mV
kΩ
%
Hz
Hz
Hz
Hz
Hz
Hz
ms
Hz
kΩ
mV
s
dBµV
dB/Hz
dB
1998 Jul 03
11
11 Page |
Páginas | Total 28 Páginas | |
PDF Descargar | [ Datasheet TDA9840.PDF ] |
Número de pieza | Descripción | Fabricantes |
TDA9840 | TV and VTR stereo/dual sound processor with digital identification and I2C-bus control | NXP Semiconductors |
TDA9845 | TV and VTR stereo/dual sound processor with digital identification | NXP Semiconductors |
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