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參數(shù)資料
| 型號： | AK4145ET |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | Digital BTSC Stereo Encoder |
| 中文描述： | 數(shù)字BTSC立體聲編碼器 |
| 文件頁數(shù)： | 5/11頁 |
| 文件大?。?/td> | 197K |
| 代理商： | AK4145ET |
[AK4145]
ANALOG CHARACTERISTICS
(Ta=25
°
C; AVDD=TVDD=3.3V; DVDD=1.8V; fs=48kHz; BICK=64fs; Signal Frequency=1kHz; 16bit Data;
Measurement frequency=50Hz
～
13kHz; unless otherwise specified)
Parameter
Resolution
Composite Audio Output Characteristics
Output Voltage
Load Resistance (
Note 4
)
Load Capacitance
BTSC Encoder Characteristics (
Note 5
)
Mono (1kHz, 100%EIM)
S/(N+D)
Stereo (1kHz, 100%EIM. L or R)
Mono (input off)
S/N
(A-weighted)
Stereo (input off)
1kHz
Stereo Separation
20Hz~500Hz
500Hz~5kHz
5kHz~13kHz
Mono (20~13kHz)
Frequency response
Stereo (20~13kHz)
Video Sync Input Characteristics
Video Input Sync Level
Video Input Impedance
Power Supplies
Power Supply Current
Normal Operation (PDN pin = “H”):
AVDD
DVDD
TVDD
Power down mode (PDN pin = “L”): (
Note 3
)
AVDD
DVDD
TVDD
Note 3. All digital input pins are held to VSS.
Note 4. AC-load.
Note 5. Received by the Belar TVM230 (BTSC Decoder) and measured by the Audio Precision (System Two). Refer to
the evaluation board manual.
min
typ
max
16
Units
Bits
2.2
Vp-p
k
Ω
pF
5
25
0.01
0.01
82
82
47
TBD
TBD
1
1
%
%
dB
dB
dB
dB
dB
dB
dB
dB
75
75
30
27
23
-1
-1
100
mVp-p
M
Ω
1
mA
mA
mA
μ
A
μ
A
μ
A
13
8
0.1
10
10
10
TBD
TBD
TBD
100
100
100
Rev. 0.3-PB
2007/12
- 5 -
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