參數(shù)資料
型號: TDA8722M-T
廠商: NXP SEMICONDUCTORS
元件分類: 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PDSO20
文件頁數(shù): 22/28頁
文件大?。?/td> 155K
代理商: TDA8722M-T
1998 Jun 23
3
Philips Semiconductors
Product specication
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 specied.
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
load
frequency between
471.25 and 855.25 MHz
77
80
83
dB
V
δf
FM deviation on audio
subcarrier
fi = 400 Hz; V1 = 0.5 V (RMS);
before pre-emphasis lter
20
25
30
kHz
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