AK8853XQ Datasheet, PDF (6/70 Pages) Asahi Kasei Microsystems – NTSC/PAL/SECAM Digital Video Decoder

[AK8853XQ/ VN]
Pin
No.
Symbol P/S¹ I/O²
Description
40 DVSS
D G Digital ground pin.
41 XTO
Crystal connection pin.
Connect to digital ground via 22 pF capacitor as shown in Sec. 11.
D O Use 24.576 MHz crystal.
When PDN=L, output level is DVSS.
If crystal is not used, connect to NC or DVSS.
42 AVSS
A G Analog ground pin.
43 AVDD
A P Analog power supply pin.
44 IREF
A
O
Reference current setting pin.
Connect to ground via 6.8 kΩ (≤1% accuracy) resistor.
45 AVSS
A G Analog ground pin.
46 ATIO
A I/O Analog test pin. For normal operation, connect to AVSS.
47 VCOM
A
O
Common internal voltage for AD convertor.
Connect to AVSS via ≥0.1 µF ceramic capacitor.
48 AIN4
A
I
Analog video signal input pin. Connect via 0.033 µF capacitor and
voltage-splitting resistors as shown in Sec. 11.
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 connection pin.
Output pin status as determined by OE, PDN, and RSTN pin status.
OE
PDN
RSTN
Output1¹
Output2¹
L
x
x
Hi-z output
L output
H
L
x
L output
L output
H
1 _Output1:
Output2:
H
L
L output
H
Default Data Out²
DATA[7:0], HD, VD_F, DVALID_F, DTCLK
NSIG
L output
Default Data Out²
If OE=H and PDN=H just after power is turned on, output pin status will be indefinite
until internal state is determined by reset sequence.
2_{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.)
Rev-E-00
6
2008/01