參數(shù)資料
型號(hào): TDA9819
廠商: NXP SEMICONDUCTORS
元件分類: 消費(fèi)家電
英文描述: Multistandard Vision And Sound-IF PLL With DVB-IF Processing(帶數(shù)字視頻廣播-中頻(DVB-IF)處理的多標(biāo)準(zhǔn)視覺及聲音-中頻(IF)的 PLL)
中文描述: SPECIALTY CONSUMER CIRCUIT, PDIP32
封裝: 0.400 INCH, PLASTIC, SDIP-32
文件頁數(shù): 18/40頁
文件大?。?/td> 267K
代理商: TDA9819
1998 Jul 14
18
Philips Semiconductors
Product specification
Multistandard vision and sound-IF PLL with
DVB-IF processing
TDA9819
Notes to the characteristics
1.
Values of video and sound parameters are decreased at V
P
= 4.5 V.
2.
This parameter is not tested during production and is only given as application information for designing the television
receiver.
3.
Source impedance: 2.3 k
in parallel to 12 pF (SAW filter); f
IF
= 45 MHz.
4.
Loop filter 330
/220 nF; loop bandwidth for M standard: BL
70 kHz (natural frequency f
n
12 kHz; damping factor
d
2.9; loop bandwidth for B/G and L standard: BL
80 kHz (natural frequency f
n
13 kHz; damping factor d
3.2;
calculated with sync level within gain control range). Resonance circuit of VCO: Q
0
> 50; C
ext
and C
int
see Fig.12.
5.
Temperature coefficient of external LC-circuit is equal to zero.
6.
V
i IF
= 10 mV RMS;
f = 1 MHz (VCO frequency offset related to picture carrier frequency); white picture video
modulation.
7.
V
i IF
signal for nominal video signal.
8.
Offset current measured between pin 7 and half of supply voltage (V
P
= 2.5 V) under the following conditions:
no input signal at VIF input (pins 1, 2, 4 and 5) and VIF amplifier gain at minimum (V
28
= V
P
). Due to sample-and-hold
mode of the FPLL in L standard, the leakage current of the loop filter capacitor (C = 220 nF) should not exceed
500 nA.
9.
Measurements taken with SAW filter M3951M and M9352M (Siemens, M standard);
frequency range = 10 kHz to 5 MHz. Sound carrier ON; PC/SC ratio 7 dB (transmitter); modulation VSB.
10. The 7 dB buffer gain accounts for 1 dB loss in the sound trap. Buffer output signal is typical 2 V (p-p), in event of
CVBS video amplifier output typical 1 V (p-p). If no sound trap is applied a 330
resistor must be connected from
output to input (from pin 21 to pin 22).
11. The leakage current of the AGC capacitor should not exceed 1
μ
A at M and B/G standard respectively 10 nA current
at L standard. Larger currents will increase the tilt.
12. S/N is the ratio of black-to-white amplitude to the black level noise voltage (RMS value, pin 10). B = 5 MHz weighted
in accordance with “CCIR 567”
AFC circuit (DVB mode)
S
US
control steepness
I
23
/
f
f
0
= 48.75 MHz; see Fig.12
and note 17
f
0
= 43.0 MHz; see Fig.12
and note 17
0.7
0.98
1.3
μ
A/kHz
S
EU
0.45
0.70
0.95
μ
A/kHz
DVB output signal (IF input to DVB output)
V
18(p-p)
output voltage
(peak-to-peak value)
DC voltage
1 dB bandwidth
3 dB bandwidth
fundamental input signal and
IF harmonics
suppression of in-band
harmonics
C
L
<
15 pF; R
L
>
5 k
; with
internal AGC
1.8
2.1
2.4
V
V
18DC
B
11
35
2.5
12
17
40
V
MHz
MHz
dB
C
L
<
15 pF; R
L
>
5 k
α
C(DVB)
α
H
2.0 V (p-p) output voltage
30
35
dB
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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