Pioneer DVL-90 Service Manual page 119

i TLC5540INS (DVD MAIN ASSY : IC731)
@ A/D CONVERTER
@ Block Diagram
REF. VOLTAGE
HE LOW RANKING
ENCODER
(4 bit)
F COMPARATOR
LOW RANKING
| | SAMPLING
COMPARATOR
LOW RANKING
ENCODER
(4 bit)
TOP RANKING
SAMPLING
COMPARATOR
(4 bit)
TOP RANKING
ENCODER
(4 bit)
@ Pin Function
Output enable
QE="L" level : Data enable
OE="H" level : Output high impedance
| 2,24 |[DGND — | — | Ground for Digital system
| 3-10 |D1-D8 = {© [Digitaloutput D1: LSB, D8: MSB
| 11,13 [Vooo | — _| Power supply for Digital system
[ta Jou | 1 toa
1 VATS
VIN
RES
Generates a 2.63V.
6
7 1
14, 15, 18] VDDA
a
20,21 |AGND
Generates a 0.61V.
DVL-90, DVL-700
2
a LOW RANKING
DATA LATCH
TOP RANKING
DATA LATCH
Reference voltage output (upper) Short-circuit to VRT in the internal reference voltage used.
[1 [Reference wotage ouput (wpe) SSCS
[1 [Reference wotage output ower) SSCS
| = [Power suppl for Analogsystem SSS
PT [araoginpst SS SCSOSOSOCSCSCSCSCSCSCSCSCSCSCSCSCSCS
[= [Greundior analog system
Reference voltage output (upper) Short-circuit to VAT in the internal reference voltage used.
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