TDA4655 查看數據表（PDF） - Philips Electronics
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TDA4655 Datasheet PDF : 17 Pages
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Philips Semiconductors
Generic multi-standard decoder
Preliminary specification
TDA4655
SYMBOL
PARAMETER
CONDITIONS MIN. TYP. MAX. UNIT
Capacitor for identification (pins 14 and 15)
V14, V15
DC voltage for an identified signal
DC voltage for an unidentified signal
2.8 3.2 3.5 V
1.5 2.0 2.3 V
PLL oscillator measured with nominal crystal (pins 16 and 18; see Table 1)
R16, R17
C16, C17
∆fL
φ
initial oscillator amplifier input resistance
oscillator amplifier input capacitance
lock-in-range referenced to
4.43361875 MHz
3.579545 MHz
phase difference for ±400 Hz
respectively 330 Hz deviation of colour
carrier frequency
note 10
−500 −
−
−
±400 −
±330 −
−
−
2 × fSC output (pin 19; if the output is not used, the pin should be connected to supply)
V19
DC output level
I19 = 0 A
6.1 6.3
R19
output resistance
I19 = 0 A
−
−
I19
output current
−
−
V19
output signal (peak-to-peak value)
−
250
Standard setting inputs/outputs (pins 20 to 23; note 11)
used as output: npn emitter follower output with 0.1 mA source to ground
VO
on-state, during scanning, colour OFF
on-state, colour ON
RO
output resistance
IO
output current
used as input: forced system switching
VO
threshold for system ON
IO
input current
IO = 0
2.4 2.5
5.8 6.0
−
−
−
−
6.8 7.0
100 150
Sandcastle pulse detector (pin 24; note 12)
C24
input capacitance
−
−
V24
thresholds for field and line pulse
pulse ON
1.3 1.6
separation
pulse OFF
1.1 1.4
line pulse separation
pulse ON
3.3 3.6
pulse OFF
3.1 3.4
burst pulse separation
pulse ON
pulse OFF
5.3 5.6
5.1 5.4
−
Ω
10
pF
±1300 Hz
±1300 Hz
1
degree
6.5 V
350 Ω
−1.0 mA
−
mV
2.7 V
6.2 V
300 Ω
−3
mA
7.2 V
180 µA
10
pF
1.9 V
1.7 V
3.9 V
3.7 V
5.9 V
5.7 V
June 1993
9
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