TDA8768A Datasheet, PDF (20/32 Pages) NXP Semiconductors – 12-bit, 70 Msps Analog-to-Digital Converter (ADC)

Philips Semiconductors
TDA8768A
12-bit, 70 Msps Analog-to-Digital Converter (ADC)
11.2 Demonstration board
B11
J2
CLK2
R4
50
VCC
C6
330 nF
1 3 5 7 9 11 13 15 17 19 21 23
2 4 6 8 10 12 14 16 18 20 22 24
CLK1
J3
C9
IN _{220 nF}
J1
R1
100 Ω
C15 10 nF
VCCO
FL3
C13
100 nF
R3
50 Ω
CLK
10 nF
VCCD
C19
VCCA
TR1 CMADC
S5
C17
10 nF
R9
100
Ω
34 _OGND
35 _CLK
36 _CLK
37 _VCCD1
38 _DGND1
39 _SH
40 _AGND4
41 _VCCA4
42 _Vi
43 _Vi
44 _AGND1
MCLT1_6T_KK81
IC2
TDA8768A
D10 ²²
D11 ²¹
IR ²⁰
CE ¹⁹
OTC ¹⁸
DGND2 ¹⁷
n.c ¹⁶
VCCD2 ¹⁵
n.c ¹⁴
n.c ¹³
FSref ¹²
B5
S4
S3
C12
100 nF
C18
10 nF
FL1
VCC
FL2
C5
330 nF
C8
S1
330 nF
VCCA
C16
C10
10
100
nF
nF
C11
100 nF
S2
B7
P2
R7
P1
FL4
VCC
12 V
J4
GND
J4
BYD17G
D3
1
2
5 kΩ
C14
100 nF
IC1
1 _IN
OUT ³
C1
C2
22 µF MC78MO5CDT ^{4.7 µF}
(20 V)
(16 V)
GND
C7
330 nF
VCC
TM3
R2
82 Ω
VCCA
1 kΩ 1.2 kΩ
R6
2.4 kΩ
VCC
PMBT
2222A
T1
VCCO
R8
750 Ω
D1
LGT679
BZV55C3V6
C3
1 µF
D2
R5
4.7
kΩ
C4
1 µF TP2
VCCO
FCE733
VCCA
C8 = close to TR1 pin.
Fig 20. Demonstration board schematic.
9397 750 09656
Product data
Rev. 02 — 03 July 2002
© Koninklijke Philips Electronics N.V. 2002. All rights reserved.
20 of 32