TMC2192 datasheet(6/69 Pages) CADEKA

6 / 69 page

TMC2192

PRODUCT SPECIFICATION

REV. 1.0.0 8/13/03

ANALOG INTERFACE – Support (9 pins)

CBYPLUMA

0.1

µF

Reference Bypass Capacitor for LUMA DAC. Connection

point for 0.1

µF Capacitor.

CBYPCHROM

0.1

µF

Reference Bypass Capacitor for CHROMA DAC. Connection

point for 0.1

µF Capacitor.

CBYPCOMP

0.1

µF

Reference Bypass Capacitor for COMPOSITE DAC.

Connection point for 0.1

µF Capacitor.

RREFLUMA

1210 Ohm

Current Setting Resistor. Connection point for external current

setting resistor for LUMA DAC. The resistor is connected

between RREFLUMA and GND. Output video levels are

inversely proportional to the value of RREF2.

RREFCHROM

1210 Ohm

Current Setting Resistor. Connection point for external current

setting resistor for CHROMA DAC. The resistor is connected

between RREFCHROM and GND. Output video levels are

inversely proportional to the value of RREFCHROM.

RREFCOMP

1210 Ohm

Current Setting Resistor. Connection point for external current

setting resistor for COMPOSITE DAC. The resistor is connected

between RREFCOMP and GND. Output video levels are

inversely proportional to the value of RREFCOMP.

VREF

1.235 V

Voltage Reference Input. External voltage reference input,

internal voltage reference output, nominally 1.235V.

MPU INTERFACE (13 pins)

A[1:0]/SA[1:0]

61, 62

TTL

When SER (HIGH), OLUT/control/pointer address.

When SER (LOW), SA[1:0] of serial chip address SA[6:0].

CS/SCL

TTL/R-BUS

When SER (HIGH), microprocessor port clock.

When SER (LOW), serial bus clock.

D[7:0]

63–70

TTL

Bi-directional Data Bus.

RW/SDA

TTL/R-BUS

When SER (HIGH), read/write control.

When SER (LOW), serial bus bi-directional data.

SER

TTL

Microprocessor Select. When LOW, the serial interface is

enabled. When HIGH, the parallel interface is enabled.

POWER & GROUND (17 pins)

AGND

4, 9, 14, 15, 18,

19, 100

0.0V

Analog ground

DGND

26, 40, 53, 71, 97

0.0V

Digital ground

VDD

39, 54, 72, 96

+5.0V

Digital positive power supply

VDDA

1, 7, 12, 16, 17

+5.0V

Analog positive power supply

Pin Deﬁnitions (continued)

Pin Name

Pin Number

Value

Description

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