TDA8798 Datasheet, PDF (3/24 Pages) NXP Semiconductors – Dual 8-bit, 100 Msps A/D converter with DPGA

Philips Semiconductors
Dual 8-bit, 100 Msps A/D converter with
DPGA
ORDERING INFORMATION
TYPE
NUMBER
TDA8798HL
NAME
LQFP64
PACKAGE
DESCRIPTION
plastic low profile quad flat package; 64 leads;
body 10 × 10 × 1.4 mm
BLOCK DIAGRAM
Objective specification
TDA8798
VERSION
SOT314-2
handbook, full pagewidth
to DPGA2
to DPGA2N
OPTIONAL
EXTERNAL
FILTER 2
to BUF2
to BUF2N
DPGA2 BUF2N Voref2
TE
VSSA4 _OE
DPGAC2 DPGA2N BUF2
TEST
SR ^VDDA4
3
2 1 63 64 62 54 55 52 60 61 51
6
analog ^VIN2N
input 2
7
VIN2
VDDA2 ⁵
VSSA2 ⁸
VSSD1 ²⁴
VDDD1 ²⁵
53
DPGAEN
VDDD2 ⁵⁶
VSSD2 ⁵⁷
VSSA1 ⁹
VDDA1 ¹²
10
analog ^VIN1
input 1
11
VIN1N
DPGA2
6
SERIAL
INTERFACE
REGULATOR
BUFFER
TDA8798
A
D
ADC2
58
CLK2
59
CLK2N
41 to 48
4
digital
output 2
B0 to B7
Vref2
27 _SEN2
29 _SCLK
26
SMODE
28
SDATA
30
SEN1
6
DPGA1
BUFFER
ADC1
A
D
REGULATOR
13
40 to 33
23
22
14 15 16 18 17 19 20 21 31 50 32 49
DPGAC1 DPGA1N BUF1
VDDA3 VDDO1 VSSO1
MGM863
DPGA1 BUF1N Voref1 VSSA3 VDDO2 VSSO2
Vref1
digital
output 1
A0 to A7
CLK1
CLK1N
to DPGA1N
to DPGA1
OPTIONAL
EXTERNAL
FILTER 1
to BUF1N
to BUF1
Fig.1 Block diagram.
1999 Sep 16
3