AK8857VQ Datasheet, PDF (8/105 Pages) Asahi Kasei Microsystems – Dual Channel Digital Video Decoder

[AK8857VQ]
Pin
Symbol
No.
63 VRP
64 VCOM
P/S¹ I/O²
Functional Description
Internal reference positive voltage pin for AD converter.
A
O
Connect to AVSS via ≥0.1 µF ceramic capacitor.
Common internal voltage for AD convertor.
A
O
Connect to AVSS via ≥0.1 µF ceramic capacitor.
1_{Power supply A: AVDD, D: DVDD, P1: PVDD1, P2: PVDD2}
2_{Input/Output O: output pin, I: intput pin, I/O:input/output pin, P: power supply pin,G:ground connect-}
ion pin.
Output pin status as determined by OE_A, OE_B, PDN, and RSTN pin status.
OE_A, OE_B (*2) PDN RSTN
Output1 (*2)
Output2 (*2)
L
x
x
Hi-Z output
L output
H
L
x
L output
L output
H
2_Output1:
L
H
H
L output
Default Data Out (*3)
L output
Default Data Out (*3)
(A Block) DATA_A[7:0], HD_ACT_A, VD_ACT_A, DVALID_A, FIELD_A
(B Block) DATA_B[7:0], HD_ACT_B, VD_ACT_B, DVALID_B, FIELD_B
DTCLK.
If OE_A and OE_B both are in Low condition, the DTCLK pin output is Hi-Z.
Output2: NSIG_A, NSIG_B
If (OE_A=H or OE_B=H) and PDN=H just after power is turned on, output pin status will be
indefinite until internal state is determined by reset sequence.
3_{In the absence of AIN signal input, output will be black data ((Y=0x10, Cb/Cr=0x80).}
(Blueback output can be obtained by register setting.)
MS1189-E-01
-8-
2010/12