AK4702EQ Datasheet, PDF (10/39 Pages) Asahi Kasei Microsystems – 2ch DAC with AV SCART switch

ASAHI KASEI
[AK4702EQ]
DIGITAL CHARACTERISTICS
(Ta = 25°C; VD = 4.75 ∼ 5.25V)
Parameter
Symbol
min
typ
High-Level Input Voltage
VIH
2.0
-
Low-Level Input Voltage
VIL
-
-
Low-Level Output Voltage
VOL
-
-
(SDA pin : Iout= 3mA, INT pin : Iout=
1mA)
Input Leakage Current
Iin
-
-
max
Units
-
V
0.8
V
0.4
V
± 10
µA
ANALOG CHARACTERISTICS (AUDIO)
(Ta = 25°C; VP=12V, VD = 5V; VVD1=VVD2 = 5V; fs = 48kHz; BICK = 64fs; Signal Frequency = 1kHz; 18bit Input
Data; Measurement frequency = 20Hz ∼ 20kHz; R_L ≥4.5kΩ; Volume#0=Volume#1=0dB, 0dB=2Vrms output; unless
otherwise specified)
Parameter
min
typ
max
Units
DAC Resolution
18
bit
Stereo Input: (TVINL/TVINR/VCRINL/VCRINR pins)
Analog Input Characteristics
Input Voltage
Input Resistance
100
150
2
Vrms
-
kΩ
Mono Input: (MONOIN pin)
Analog Input Characteristics
Input Voltage
Input Resistance
1
Vrms
40
60
-
kΩ
Stereo/Mono Output: (TVOUTL/TVOUTR/VCROUTL/VCROUTR/MONOOUT pins; Note: 6)
Analog Output Characteristics
Volume#0 Step Width (0dB to –6dB)
Volume#1 Step Width (+6dB to –12dB)
1.6
(-12dB to –40dB)
0.5
(-40dB to –60dB)
0.1
THD+N
(at 2Vrms output. Note: 7)
Dynamic Range (-60dB Output, A-weighted. Note: 7)
92
S/N
(A-weighted. Note: 7)
92
Interchannel Isolation (Note: 7, Note: 8)
80
Interchannel Gain Mismatch (Note: 7, Note: 8)
-
Gain Drift
-
Load Resistance (AC-Lord; Note: 9)
TVOUTL/R, VCROUTL/R, MONOOUT
4.5
Output Voltage (Note: 9, Note: 10)
1.85
Power Supply Rejection (PSR. Note: 11)
-
6
dB
2
2.4
dB
2
3.5
dB
2
3.9
dB
-86
-80
dB
96
dB
96
dB
90
dB
0.3
-
dB
200
-
ppm/°C
kΩ
2
2.15
Vrms
50
dB
Note: 6. Measured by Audio Precision System Two Cascade.
Note: 7. DAC to TVOUT.
Note: 8. Between TVOUTL and TVOUTR with digital inputs 1kHz/0dBFS.
Note: 9. THD+N : -80dB(min. at 2Vrns).
Note: 10. Full-scale output voltage by DAC (0dBFS). Output voltage of DAC scales with the voltage of VD,
Stereo output (typ@0dBFS) = 2Vrms × VD/5 when volume#0=volume#1=0dB. Do not output signals over 3Vrms.
Note: 11. The PSR is applied to VD with 1kHz, 100mV.
MS0424-E-00
- 10 -
2005/09