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TDA8722 Scheda tecnica(PDF) 3 Page - NXP Semiconductors

Il numero della parte TDA8722
Spiegazioni elettronici  I2C-bus programmable modulator for negative video modulation and FM sound
Download  28 Pages
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Produttore elettronici  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TDA8722 Scheda tecnica(HTML) 3 Page - NXP Semiconductors

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1998 Jun 23
3
Philips Semiconductors
Product specification
I2C-bus programmable modulator for
negative video modulation and FM sound
TDA8722
QUICK REFERENCE DATA
VDDA =VDDD =5V; Tamb =25 °C after the IC has reached thermal equilibrium; unless otherwise specified.
Notes
1. Value depends on value of resistor R17 (see Fig.7).
2. Value depends on value of capacitor C17 (see Fig.7).
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
VDDA
analog supply voltage
4.5
5.0
5.5
V
VDDD
digital supply voltage
4.5
5.0
5.5
V
IDD
total supply current
normal mode
41
52
63
mA
∆m
typical modulation depth range
video level (pin 19) = 0.5 V (p-p);
note 1; see Fig.10
65
90
%
∆P/S
typical picture-to-sound level
range
note 2; see Fig.11
−18
−−10
dB
VRF
RF output voltage level
asymmetrical on a 75
Ω load
frequency between
471.25 and 855.25 MHz
77
80
83
dB
µV
δf
FM deviation on audio
subcarrier
fi = 400 Hz; V1 = 0.5 V (RMS);
before pre-emphasis filter
20
25
30
kHz


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