AK4145 Datasheet, PDF (5/27 Pages) Asahi Kasei Microsystems – Digital BTSC Stereo Encoder

[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
min
typ
max
Units
Resolution
Composite Audio Output Characteristics
Output Voltage
Load Resistance
(Note 3)
5
Load Capacitance
BTSC Encoder Characteristics (Note 4)
S/(N+D)
Mono (1kHz, 100%EIM)
Stereo (1kHz, 100%EIM. L or R)
S/N
Mono (input off)
75
(A-weighted)
Stereo (input off)
75
Stereo Separation 1kHz
16
Bits
2.2
Vp-p
kΩ
25
pF
0.01
0.3
%
0.01
0.3
%
82
dB
82
dB
47
dB
20Hz~500Hz
500Hz~5kHz
5kHz~13kHz
Frequency response Mono (20~13kHz)
Stereo (20~13kHz)
Video Sync Input Characteristics
Video Input Sync Level
Video Input Current
30
27
23
-1
-1
100
2
dB
dB
dB
1
dB
1
dB
mVp-p
uA
Power Supplies
Power Supply Current
Normal Operation (PDN pin = “H”):
AVDD
DVDD
TVDD
AVDD+DVDD+TVDD
14
mA
9
mA
1
mA
30
mA
Power down mode (PDN pin = “L”): (Note 5)
AVDD
10
100
μA
DVDD
10
100
μA
TVDD
10
100
μA
Note 3. AC-load.
Note 4. Received by the Belar TVM230 (BTSC Decoder) and measured by the Audio Precision (System Two). Refer to
the evaluation board manual.
Note 5. All digital input pins are held to VSS.
MS0982-E-01
-5-
2010/09