AK4702EQ Datasheet, PDF (11/39 Pages) Asahi Kasei Microsystems – 2ch DAC with AV SCART switch

ASAHI KASEI
[AK4702EQ]
FILTER CHARACTERISTICS (AUDIO)
(Ta = 25°C; VP=10.0∼12.6V, VD = 4.75∼5.25V, VVD1=VVD2 = 4.75∼5.25V; fs = 48kHz; DEM0 = “1”, DEM1 = “0”)
Parameter
Symbol
min
typ
max
Units
Digital filter
Passband
±0.05dB (Note: 12)
PB
0
21.77
kHz
-6.0dB
-
24.0
-
kHz
Stopband
(Note: 12)
SB
26.23
kHz
Passband Ripple
PR
± 0.06
dB
Stopband Attenuation
SA
54
dB
Group Delay
(Note: 13)
GD
-
19.1
-
1/fs
Digital Filter + LPF
Frequency Response 0 ∼ 20.0kHz
FR
-
± 0.5
-
dB
Note: 12. The passband and stopband frequencies scale with fs (system sampling rate).
ex.) PB=0.4535×fs (@±0.05dB), SB=0.546×fs.
Note: 13. The calculating delay time which occurred by digital filtering. This time is from setting the 16/18bit data of
both channels to input register to the output of analog signal.
ANALOG CHARACTERISTICS (VIDEO)
(Ta = 25°C; VP=12V, VD = 5V; VVD1=VVD2 = 5V; VVOL1/0= “00” unless specified.)
Parameter
Conditions
min
typ
Sync tip clamp
0.7
voltage at output
Chrominance bias
2.2
voltage at output
Gain
Input=0.3Vp-p, 100kHz
5.5
6
RGB Gain
Input=0.3Vp-p, 100kHz VVOL1/0= “00”
5.5
6
VVOL1/0= “01”
6.7
7.2
VVOL1/0= “10”
7.7
8.2
VVOL1/0= “11”
8.6
9.1
Interchannel Gain Input=0.3Vp-p, 100kHz (Note: 14)
-0.3
-
Mismatch
Frequency response Input=0.3Vp-p, Response at 6MHz
-1
-0.5
Input impedance Chrominance input (internally biased)
40
60
Input Signal
f=100kHz, maximum with distortion < 1.0%, -
-
gain=6dB.
Load Resistance Except RFV pin (Note: 15)
150
-
RFV pin (Note: 16)
20k
-
Load Capacitance C1 (Note: 15)
C2 (Note: 15, Note: 16)
Dynamic Output f=100kHz, maximum with distortion < 1.0%
-
-
Signal
Y/C Cross talk
f=4.43MHz, 1Vp-p input. Among TVVOUT, -
-50
TVRC, VCRVOUT and VCRC outputs.
S/N
Reference Level = 0.7Vp-p, CCIR 567 weighting. -
74
BW= 15kHz to 5MHz.
Differential Gain 0.7Vpp 5steps modulated staircase.
-
+0.4
chrominance &burst are 280mVpp, 4.43MHz.
Differential Phase 0.7Vpp 5steps modulated staircase.
-
+0.8
chrominance &burst are 280mVpp, 4.43MHz.
max Units
V
V
6.5
dB
6.5
dB
7.7
dB
8.7
dB
9.6
dB
0.3
dB
dB
-
kohm
1.5
Vpp
-
ohm
-
ohm
400
pF
15
pF
3
Vpp
-
dB
-
dB
-
%
-
Degree
MS0424-E-00
- 11 -
2005/09