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1203KLC50

Triple Video A/D Converter 8-Bit, 50Msps

Cadeka Microcircuits LLC. 

PRODUCT SPECIFICATION

TMC1203

Pin Descriptions

Pin Name

A/D Converters

VINA, VINB,

VINC

RTA, RTB, RTC

Pin Number

12, 55, 48

14, 53, 50

RBA, RBB, RBC 15, 52, 51

CLKA, CLKB,

CLKC

9, 58, 45

DA7-0

4, 3, 2, 80, 79,

78, 77, 76

DB7-0

63, 64, 65, 66,

67, 68, 69, 70

DC7-0

41, 40, 39, 38,

37, 36, 35, 34

OEA, OEB, OEC 5, 62, 42

Power

VDDA

11, 47, 56

VDD

AGND

6, 7, 27, 28, 29,

30, 43, 44, 60,

61

13, 49, 54

DGND

No Connect

N/C

16, 17, 18, 19,

20, 21, 22, 25,

26, 32, 33, 71,

72, 74, 75

1, 8, 10, 23, 24,

31, 46, 57, 59,

73

Value

RTX to

RBX

2.6V

0.6V

CMOS

CMOS/

TTL

CMOS/

TTL

CMOS/

TTL

CMOS

+5V

+5V

0.0V

0.0V

open

Pin Function Description

Analog Inputs. The input voltage conversion range lies between the

voltage applied to the RTX and RBX pins. RTX, RBX.

Reference Voltage, Top Inputs. DC voltages applied to RTA, RTB

and RTC define highest value of VINX.

Reference Voltage, Bottom Inputs. DC voltages applied to RBA,

RBB and RBC define highest value of VINX.

Convert (Clock) Inputs. A/D converter clock inputs. CMOS-

compatible. VINX is sampled on the falling edge of CLKX. Clock

inputs are separate for the three converters.

Data outputs, Converter A (D7 = MSB). Eight-bit CMOS- and

TTL-compatible digital outputs. Valid data is output on the rising

edge of CLKX.

Data outputs, Converter B (D7 = MSB). Eight-bit CMOS- and

TTL-compatible digital outputs. Valid data is output on the rising

edge of CLKX.

Data outputs, Converter C (D7 = MSB). Eight-bit CMOS- and

TTL-compatible digital outputs. Valid data is output on the rising

edge of CLKX.

Output Enable Inputs. CMOS-compatible. When LOW, the A/D

output is enabled. When HIGH, the output is in a high-impedance

state. Output Enables are separate for the three converters.

Analog Supply Voltage. +5 Volt power inputs. These should come

from the same power source and be decoupled to AGND.

Digital Supply Voltage. +5 Volt power inputs. These should come

from the same power source and be decoupled to AGND.

Analog Ground. Ground connections. These pins should be

connected to the system analog ground plane.

Digital Ground. Ground connections. These pins should be

connected to the system analog ground plane.

Not Connected.

4

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