AK8857VQ Datasheet, PDF (11/105 Pages) Asahi Kasei Microsystems – Dual Channel Digital Video Decoder

[AK8857VQ]
(4) Analog characteristics (AVDD=1.8V, Temp.25˚C)
Selector clamp
Parameter
Symbol Min Typ Max Units
Maximum input range VIMX 0 0.50 0.60 V_PP
Condition
ADC output data is fullcode when
input range is 0.6Vpp input.
AD converter
Parameter
Symbol Min Typ Max Units
Condition
Resolution
RES
11
bit
Operating clock
frequency
FS
27
MHz ADC:54MHz
Integral nonlinearity
+4.0
FS=27MHz,
INL
±2.0
LSB
-4.0
Input range = 0.5Vpp
Differential nonlinearity
DNL
+1.5
FS=27MHz,
±0.5
LSB
-1.0
Input range = 0.5Vpp
S/N
SN
54
dB Fin=1MHz*, FS=27MHz,
S/(N+D)
SND
52
dB Input range = 0.5Vpp
ADC internal common voltage VCOM
0.96
V
ADC internal
positive VREF
VRP
1.28
V
ADC internal
negative VREF
VRN
0.64
V
*Fin = AIN input signal frequency
AAF (Anti-Aliasing Filter)
Parameter
Pass band ripple
Stop band blocking
Symbol Min
Gp
-1
Gs
20
Typ
35
Max
+1
Units
dB
dB
Condition
6MHz
27MHz
(5) Current consumption (at DVDD = AVDD = PVDD1 = PVDD2 = 1.8V, Ta = −40 ~ 85˚C) (*1)
Parameter
Symbol Min Typ Max Units
Condition
(Active mode)
Total
IDD1
86 130 mA CVBS : 2ch
IDD2
63
mA CVBS : 1ch (*2)
IDD3
75 112 mA S-Video (*2)
Analog block
CVBS : 2ch
AIDD
39
mA
With Xtal crystal connected.
Digital block
DIDD
34
mA CVBS : 2ch
I/O block
Load condition: CL=12pF, 24pF*
PIDD
13
mA
(*DTCLK pin)
(Power down mode)
Total
SIDD
≤ 1 20 uA
Analog block
ASIDD
≤1
uA PDN=L(DVSS) (*3)
Digital block
DSIDD
≤1
uA
I/O block
PSIDD
≤1
uA
(*1) With NTSC-J 100% color bar input.
(*2) Reference Value. During A Block is set to output, B Block is set to [No Decode].
MS1189-E-01
-11-
2010/12