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參數(shù)資料
| 型號(hào)： | TDA9840T-T |
| 廠(chǎng)商： | NXP SEMICONDUCTORS |
| 元件分類(lèi)： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO20 |
| 文件頁(yè)數(shù)： | 5/15頁(yè) |
| 文件大?。?/td> | 160K |
| 代理商： | TDA9840T-T |
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1998 Jul 03
13
Philips Semiconductors
Product specication
TV and VTR stereo/dual sound processor
with digital identication and I2C-bus control
TDA9840
Notes
1. Input control amplifiers with
Gv = 0 dB.
2. Input control amplifiers with
Gv = 2 dB.
3. Vo = 0.5 V RMS value; f = 1 kHz; input control amplifiers with Gv = 0 dB.
4. Without de-emphasis capacitors with respect to nominal gain.
5. In dual mode: A (B)-signal into B (A) channel.
In stereo mode: R-signal into left channel; L-signal = 0.
6. Test procedure tbf (same as TDA9855).
7. Tuner input signal, measured with PCALH reference front end (1
2EMF, 75 , 2T/20T/white bar, 100% video) and
PC/SC1 = 13 dB; PC/SC2 = 20 dB. The pilot band-pass has to be aligned.
8. Bandwidth of the pilot BP-filter B3dB = 1.2 kHz. Vi2 input driven with identification-modulated pilot carrier and white
noise.
9. Identification window is defined as total pull-in frequency range (lower plus upper side) of identification PLL (steady
detection) plus window increase due to integrator (fluctuating detection).
10. The maximum total system identification time ON is equal to tident(on) plus tacqui AGC plus tI2C read-out.
11. The maximum total system identification time OFF is equal to tident(off) plus tI2C read-out.
I2C-bus transceiver (pins 1 and 20)
fCI
clock frequency
0
100
kHz
I2C-bus: SCL (pin 20)
VIL
LOW level input voltage
0.3
1.5
V
VIH
HIGH level input voltage
3.0
5.5
V
tlow
timing LOW period
4.7
s
thigh
timing HIGH period
4.0
s
tr
rise time
1
s
tf
fall time
0.3
s
IIL
LOW level input current
10
A
IIH
HIGH level input current
10
A
I2C-bus: SDA (pin 1)
VIL
LOW level input voltage
0.3
1.5
V
VIH
HIGH level input voltage
3.0
5.5
V
tr
rise time
1
s
tf
fall time
0.3
s
tsu
data set-up time
0.25
s
IIL
LOW level input current
10
A
IOL
LOW level output current
3
mA
IIH
HIGH level input current
10
A
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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