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參數(shù)資料
| 型號： | TDA8722 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | IIC-bus programmable modulator for negative video modulation and FM sound(負向視頻調制和調頻聲的IIC總線可編程調制器) |
| 中文描述： | IIC總線可編程調制器調制負視頻和FM聲音（負向視頻調制和調頻聲的進口證總線可編程調制器） |
| 文件頁數(shù)： | 10/28頁 |
| 文件大?。?/td> | 196K |
| 代理商： | TDA8722 |
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1998 Jun 23
10
Philips Semiconductors
Product specification
I
2
C-bus programmable modulator for
negative video modulation and FM sound
TDA8722
CHARACTERISTICS
V
DDA
= V
DDD
= 5 V; T
amb
= 25
°
C; valid over the whole UHF band; measured in circuit of Fig.7;
unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply
I
DD
supply current
normal mode
RF off test mode
41
30
52
38
63
46
mA
mA
Video characteristics
I
19
z
19
m
input current (AC)
video input impedance
modulation depth
V
19
= 3.2 V
V
19
= 3.2 V
V
19
= 500 mV (p-p) EBU
colour bars; R17 = 120 k
;
see Fig.7
during clipping condition;
note 1
TPSG mode;
R17 = 120 k
balance test mode;
R17 = 120 k
V
19
= 500 mV (p-p) EBU
colour bars;
47 k
≤
R17
≤ ∞
referenced to the value for
APL = 50%;
V
19
= 500 mV (p-p)
video level on pin 19;
note 2
f
RF
< 700 MHz; note 3
f
RF
> 700 MHz; note 3
note 4
note 4
V
19
= 500 mV (p-p);
V/S = 7/3
note 5
30
77
0.5
82
2.0
87
μ
A
k
%
85
98
%
72
82
92
%
110
%
m
modulation depth range
65
90
%
m
APL
variation of modulation depth with
change of APL between 10 and 90%
2
+2
%
V
clip(p-p)
video input level where clipping starts
(peak-to-peak value)
video signal-to-noise ratio
0.56
V
S/N video
48
46
8
8
6.9/3.1
52
50
7/3
+8
+8
7.1/2.9
dB
dB
%
deg
G
diff
φ
diff
V/S
differential gain
differential phase
video-to-sync ratio
f
video
frequency response for the video signal
1
+1
dB
Audio characteristics (for PAL G standard; audio subcarrier at 5.5 MHz)
Z
1
δ
m
audio input impedance
modulation deviation
30
20
25
30
k
kHz
f
1
= 400 Hz;
V
1
= 0.5 V (RMS) before
pre-emphasis filter
f
1
= 400 Hz;
V
1
= 2.0 V (RMS) before
pre-emphasis filter
f
1
= 1 kHz;
V
1
= 0.5 V (RMS) before
pre-emphasis filter
δ
m
max
maximum modulation deviation
60
85
kHz
THD
total harmonic distortion
0.4
1.5
%
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相關代理商/技術參數(shù) |
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| TDA8722M | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:I2C-bus programmable modulator for negative video modulation and FM sound |
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| TDA8725T | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Antenna signal processor |
| TDA8730 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:PLL FM demodulator for DBS signals |
| TDA8732 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:NICAM-728 demodulator NIDEM |
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