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参数资料
| 型号： | TDA9884HN |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 接收器 |
| 英文描述： | AM/FM, AUDIO/VIDEO DEMODULATOR, PQCC32 |
| 封装： | 5 X 5 MM, 0.85 MM HEIGHT, PLASTIC, MO-220, HVQFN-32 |
| 文件页数： | 30/58页 |
| 文件大小： | 290K |
| 代理商： | TDA9884HN |
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TDA9884_2
Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Product data sheet
Rev. 02 — 12 May 2006
36 of 58
Philips Semiconductors
TDA9884
I2C-bus controlled multistandard alignment-free IF-PLL
[5]
Loop bandwidth BL = 70 kHz (damping factor d = 1.9; calculated with sync level within gain control range). Calculation of the VIF-PLL
lter can be done by use of the following formulae:
, valid for d
≥ 1.2;
, where: KO is the VCO
steepness
or
; KD is the phase detector steepness
; R is the loop resistor; C is the loop capacitor; BL3dB is the
loop bandwidth for
3 dB; d is the damping factor.
[6]
Vi(VIF) = 10 mV (RMS); f = 1 MHz (VCO frequency offset related to picture carrier frequency); white picture video modulation.
[7]
Condition: luminance range (5 steps) from 0 % to 100 %.
[8]
Measurement using unied weighting lter (“
ITU-T J.61”), 200 kHz high-pass lter, 5 MHz low-pass lter and subcarrier notch lter
(“
ITU-T J.64”).
[9]
Noise analyzer setting: 200 kHz high-pass and SC-trap switched on.
[10] The intermodulation gures are dened for:
a) f = 1.1 MHz (referenced to black and white signal) as
b) f = 3.3 MHz (referenced to color carrier) as
[11] Measurements taken with SAW lter M1963M (sound shelf: 20 dB); loop bandwidth BL = 70 kHz. Modulation VSB; sound carrier off;
fvideo > 0.5 MHz.
[12] Measurements taken with SAW lter M1963M (sound shelf: 20 dB); loop bandwidth BL = 70 kHz. Sound carrier on;
fvideo = 10 kHz to 10 MHz.
[13] AC load; CL < 20 pF and RL >1k. The sound carrier frequencies (depending on TV standard) are attenuated by the integrated sound
carrier traps (see Figure 16 to Figure 21;
H (s) is the absolute value of transfer function).
[14] The sound carrier trap can be bypassed by switching the I2C-bus. In this way the full composite video spectrum appears at pin CVBS.
The amplitude is 1.1 V (p-p).
[15] If selected by the I2C-bus, the VIF-AGC voltage can be monitored at pin OP2. In this case, OP2 cannot be used for the normal port
function.
[16] The response time is valid for a VIF input level range from 200
Vto70mV.
[17] The fast mode will be activated automatically, if within a time of typically 150
s for mobile mode and 1.2 ms for normal mode no AGC
event occurs. An AGC event is a charge current pulse into the AGC capacitor due to reaching AGC reference voltage the sync level.
[18] The fast mode will be activated automatically, if the black level drops down by half of the sync amplitude.
[19] If selected by the I2C-bus, pin OP1 can alternatively be used for external AGC control, activated by pin AGCSW. In this case, OP1
cannot be used for the normal port function.
[20] Pin AFC is usable as AFC output or as SIF-AGC.
a) To match the AFC output signal to different tuning systems a current source output is provided. The test circuit is given in Figure 7.
The AFC steepness can be changed by resistors R1 and R2.
b) In mobile mode the internal SIF-AGC is switched to pin AFC. In this case AFC out is disabled.
[21] The tolerance of the reference frequency determines the accuracy of the VIF-AFC, FM demodulator center frequency and maximum
FM deviation.
[22] The intercarrier output signal at pin SIOMAD can be calculated by the following formulae taking into account the internal video signal
with 1.1 V (p-p) as a reference:
and
, where:
is
the correction term for RMS value,
is the sound-to-picture carrier ratio at pins VIF1 and VIF2 in dB, 6 dB is the correction
term of internal circuitry and
±3 dB is the tolerance of video output and intercarrier output V
o(intc)(rms).
[23] For normal operation (with the I2C-bus) no DC load at pin SIOMAD is allowed. The second module address (MAD2) will be activated by
the application of a 2.2 k
resistor between pin SIOMAD and ground. If this MAD2 is activated, also the power-on setup state activates
a VIF frequency of 58.75 MHz.
[24] SIF input level is 10 mV (RMS); VIF input level is 10 mV (RMS) unmodulated.
BL
-3dB
1
2
π
------K
OK D R
=
d
1
2
---RK
OK DC
=
rad
V
---------
2
π
Hz
V
-------
A
rad
---------
α
IM
20 log
V
0 at 4.4 MHz
V
0 at 1.1 MHz
--------------------------------------
3.6 dB.
+
=
α
IM
20 log
V
0 at 4.4 MHz
V
0 at 3.3 MHz
--------------------------------------
.
=
V
ointc
() rms
()
1.1
1
22
----------
×
10
r
V
×
=
r
1
20
------
V
iSC
()
V
iPC
()
---------------- dB
()
6dB
3 dB
±
+
×
=
1
22
----------
V
iSC
()
V
iPC
()
---------------- dB
()
相关PDF资料 |
PDF描述 |
|---|---|
| TDA9885HN/V5 | AM/FM, AUDIO/VIDEO DEMODULATOR, PQCC32 |
| TDA9885T/V5 | AM/FM, AUDIO/VIDEO DEMODULATOR, PDSO24 |
| TDA9885TS/V5 | AM/FM, AUDIO/VIDEO DEMODULATOR, PDSO24 |
| TDA9886HN/V5 | AM/FM, AUDIO/VIDEO DEMODULATOR, PQCC32 |
| TDA9886T/V5 | AM/FM, AUDIO/VIDEO DEMODULATOR, PDSO24 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TDA9884TS | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:I2C-bus controlled multistandard alignment-free IF-PLL for mobile reception |
| TDA9884TS/V1 | 功能描述:调节器/解调器 MOBILE VIF AND SIF DEMODULATOR RoHS:否 制造商:Texas Instruments 封装 / 箱体:PVQFN-N24 封装:Reel |
| TDA9884TS/V1,112 | 功能描述:调节器/解调器 MOBILE VIF AND SIF RoHS:否 制造商:Texas Instruments 封装 / 箱体:PVQFN-N24 封装:Reel |
| TDA9884TS/V1,118 | 功能描述:调节器/解调器 MOBILE VIF AND SIF RoHS:否 制造商:Texas Instruments 封装 / 箱体:PVQFN-N24 封装:Reel |
| TDA9884TS/V1/S1,11 | 功能描述:调节器/解调器 MOBILE VIF AND SIF RoHS:否 制造商:Texas Instruments 封装 / 箱体:PVQFN-N24 封装:Reel |
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