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TDA4557 Scheda tecnica(PDF) 5 Page - NXP Semiconductors

Il numero della parte TDA4557
Spiegazioni elettronici  Multistandard decoder
Download  11 Pages
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Produttore elettronici  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TDA4557 Scheda tecnica(HTML) 5 Page - NXP Semiconductors

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March 1991
5
Philips Semiconductors
Product specification
Multistandard decoder
TDA4557
CHARACTERISTICS
VP =V13-9 = 12 V; Tamb =25 °C; measured in Fig.1; unless otherwise specified
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNIT
Supply (pin 13)
Supply voltage range
VP
10.8
1.2
13.2
V
Supply current
IP
50
65
80
mA
Chrominance part
Chrominance input signal (pin 15)
input voltage with 75% colour bar signal
(peak-to-peak value)
V15(p-p)
20
100
400
mV
input impedance
Z
15-9
710
k
Chrominance output signal (pin 12)
output voltage
(peak-to-peak value)
V12(p-p)
1.1
1.6
1.75
V
output impedance
(npn emitter follower)
Z12-9−
20
DC output voltage
V12-9
7.3
8.2
9.0
V
Input for delayed signal (pin 10)
DC input current
I10
−−
10
µA
input resistance
R10-9
10
−−
k
Demodulator part (PAL/NTSC)
Colour difference output signals
output voltage (proportional to V13-9)
(peak-to-peak value)
− (R-Y) signal (pin 1)
V1(p-p)
1.05 V
± 2dB
V
− (B-Y) signal (pin 3)
V3(p-p)
1.33 V
± 2dB
V
Ratio of colour difference output signals
(R-Y)/(B-Y)
V1/3-9
0.79
± 10%
Residual carrier (subcarrier frequency)
(peak-to-peak value)
V1,3(p-p)
−−
30
mV
Residual carrier (PAL only)
(peak-to-peak value)
V1,3(p-p)
10
mV
H/2 ripple at (R-Y) output (pin 1)
(peak-to-peak value)
without input signal
V1(p-p)
−−
10
mV
DC output voltage
npn emitter follower with
internal current source of 0.3 mA
V1,3-9
7.0
7.7
8.4
V
output impedance
Z
1,3-9−
150


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