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參數(shù)資料
| 型號： | TDA9852 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費家電 |
| 英文描述： | I2C-bus controlled BTSC stereo/SAP decoder and audio processor |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP42 |
| 文件頁數(shù)： | 19/40頁 |
| 文件大?。?/td> | 258K |
| 代理商： | TDA9852 |
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1997 Mar 11
19
Philips Semiconductors
Preliminary specification
I
2
C-bus controlled BTSC stereo/SAP
decoder and audio processor
TDA9852
Notes to the characteristics
1.
The oscillator is designed to operate together with MURATA resonator CSB503F58. Change of the resonator supplier
is possible, but the resonator specification must be close to CSB503F58.
2.
The internal SAP carrier level is determined by the composite input level and the level adjustment gain.
3.
Frequency range 20 Hz to 20 kHz; select in to input line control; effects: linear stereo.
4.
Crosstalk:
5.
The transmission contains:
a) Total initialization with MAD and SAD for volume and 11 DATA words, see also definition of characteristics
b) Clock frequency = 50 kHz
c) Repetition burst rate = 400 Hz
d) Maximum bus signal amplitude = 5 V (p-p).
The listed pin voltage corresponds with typical gain steps of +6 dB, +3 dB, 0 dB,
6 dB and
15 dB.
Attack time constant = C
AV
×
R
att
.
6.
7.
8.
Example: C
AV
= 4.7
μ
F; I
dec
= 2
μ
A; G
1
=
9 dB; G
2
= +6 dB
→
decay time results in 4.14 s.
When reset is active the GMU-bit (general mute) and the LMU-bit (LINE OUT mute) is set and the I
2
C-bus receiver
is in the reset position.
10. 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).
9.
Digital part (I
2
C-bus pins);
note 10
V
IH
V
IL
I
IH
I
IL
V
OL
HIGH level input voltage
LOW level input voltage
HIGH level input current
LOW level input current
LOW level output voltage
3
0.3
10
10
V
CC
+1.5
+10
+10
+0.4
V
V
μ
A
μ
A
V
I
IL
= 3 mA
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
20 logV
V
o(rms)
--------------------
Decay time
C
AV
-------------------------------------------------------------------------------
0.76 V
×
10
G
1
–
--20
10
G
2
–
--20
–
I
dec
=
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