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參數(shù)資料
| 型號(hào)： | TDA9845T |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | TV and VTR stereo/dual sound processor with digital identification |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO20 |
| 封裝： | PLASTIC, SO-20 |
| 文件頁(yè)數(shù)： | 11/20頁(yè) |
| 文件大小： | 177K |
| 代理商： | TDA9845T |
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1995 Mar 20
11
Philips Semiconductors
Preliminary specification
TV and VTR stereo/dual sound processor
with digital identification
TDA9845
Notes
1.
2.
3.
V
o
= 0.5 V RMS value; f = 1 kHz.
Without de-emphasis capacitors with respect to nominal gain.
In dual mode: A (B)-signal into B (A) channel.
In stereo mode: R-signal into left channel; L-signal = 0.
Tuner input signal, measured with PCALH reference front end (
1
2
EMF, 75
, 2T/20T/white bar, 100% video) and
PC/SC
1
= 13 dB; PC/SC
2
= 20 dB. The pilot band-pass has to be aligned.
Bandwidth of the pilot BP-filter B
3 dB
= 1.2 kHz. V
i 2
input driven with identification-modulated pilot carrier and white
noise.
Identification window is defined as twice the pull-in frequency range (lower plus upper side) of identification PLL
(steady detection) plus window increase due to integrator (fluctuating detection).
The maximum total system identification time ON is equal to t
ident(on)
plus t
acqui AGC
.
The maximum total system identification time OFF is equal to t
ident(off)
.
4.
5.
6.
7.
8.
t
det
pull-in time of identification
PLL (referenced to
f
det STEREO
= 117.48 Hz and
f
det DUAL
= 274.12 Hz)
identification window
frequency width (referenced
to f
det STEREO
= 117.48 Hz
and f
det DUAL
= 274.12 Hz)
integrator time constant
total identification time on
STEREO
DUAL
0
0
0.8
0.8
s
s
f
ident
STEREO; note 6
DUAL; note 6
2.2
2.3
2.2
2.3
Hz
Hz
t
integr
t
ident(on)
0.94
0.35
0.35
0.60
0.60
0.94
2.0
2.0
1.5
1.5
s
s
s
s
s
STEREO; note 7
DUAL; note 7
STEREO; note 8
DUAL; note 8
t
ident(off)
total identification time off
LED (pins 14 and 15)
V
L(off)
V
L(on)
I
L(off)
I
L(on)
output voltage
output voltage
input current
input current
LED off
LED on
LED off
LED on
8.8
0.7
1
12
V
V
μ
A
mA
Control input ports C1, C2 and C3 (pins 1, 2 and 20)
V
CL
V
CH
I
CL
I
CH
LOW level input voltage
HIGH level input voltage
LOW level input current
HIGH level input current
0
2.4
0.8
8.8
1
1
V
V
μ
A
μ
A
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| TDA9847 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:TV and VTR stereo/dual sound processor with digital identification |
| TDA9847T | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:TV and VTR stereo/dual sound processor with digital identification |
| TDA9850 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:I2C-bus controlled BTSC stereo/SAP decoder |
| TDA9850T | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:I2C-bus controlled BTSC stereo/SAP decoder |
| TDA9850TD-T | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:BTSC/SAP Audio Decoder |
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