參數(shù)資料
型號(hào)： TDA9873H
廠商： NXP SEMICONDUCTORS
元件分類： 消費(fèi)家電
英文描述： Multistandard dual carrier stereo sound decoder
中文描述： SPECIALTY CONSUMER CIRCUIT, PQFP44
封裝： 14 X 14 MM, 2.20 MM HEIGHT, PLASTIC, SOT205-1, QFP-44
文件頁(yè)數(shù)： 16/40頁(yè)
文件大?。?/td> 197K
代理商： TDA9873H
2000 Apr 04
16
Philips Semiconductors
Product specification
Multistandard dual carrier stereo sound decoder
TDA9873H
12. The maximum total system identification time ‘on’ for a channel change is equal to the maximum value of t
ident(on)
plus t
I2C(read-out)
. The maximum total system identification time ‘off’ for a channel change is equal to the maximum
value of t
ident(off)
plus t
I2C(read-out)
. The fast mode is mainly for use during search tuning, program or channel select.
If the channel is selected, the identification response should be switched to normal mode for improved reliability.
However due to the transition from fast to normal mode, the identification bits are not valid for one integrator period.
Therefore the transmitter mode detected during the fast mode must be stored before changing to the normal mode.
The storage must be kept for two seconds (maximum value of t
ident(on)
in the normal mode) from the moment of
transition. The identification can now operate in the normal mode until the next tuning action.
13. Identification window is defined as total pull-in frequency range (lower plus upper side) of identification PLL (steady
detection) plus window increase due to integrator (fluctuating detection).
14. Window width dependent on f
ω
.
15. The AC characteristics are in accordance with the I
2
C-bus specification. The maximum clock frequency is 100 kHz.
Information about the I
2
C-bus can be found in the brochure “The I
2
C-bus and how to use it”
(order number 9398 393 40011).
Table 1
TV standard settings
STANDARD
f
SC1
(MHz)
f
SC2
(MHz)
PILOT
FREQUENCY
f
pilot
(kHz)
STEREO
IDENTIFICATION
FREQUENCY
f
stereo
(Hz)
149.85
117.48
117.48
117.48
117.48
DUAL
IDENTIFICATION
FREQUENCY
f
dual
(Hz)
276.04
274.12
274.12
274.12
274.12
DE-EMPHASIS
t
DEP
(
μ
s)
M
B/G
I
D/K (1)
D/K (2)
D/K (3)
4.5
5.5
6
6.5
6.5
6.5
4.724
5.742
6.268
6.742
5.742
55.0699
54.6875
54.6875
54.6875
54.6875
75
50
50
50
50
50
Fig.3 Allowable interference video level.
video: colour-bar
SC2
7 dB
=
handbook, full pagewidth
1
0.5
0.16
0
6 12
25
150
SC1
50
2
MHB433
Vi(FM)(rms) (mV)
Vi(vid)(p-p)
(V)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TDA9873HS 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multistandard dual carrier stereo sound decoder
TDA9874A 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital TV sound demodulator/decoder
TDA9874AH 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital TV sound demodulator/decoder
TDA9874AH/V2,557 功能描述:音頻放大器 DIGITAL STEREO DECODER VCR RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TDA9874AHB 功能描述:音頻放大器 DIGITAL STEREO DECODER VCR RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
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