Tr i p ath Technol ogy, I n c. - Techni cal I n for m ati on

3

RB-TK2050 Parallel, Kli/Rev 1.0/ 11.02

POWER SUPPLIES

Two external power supplies are required to operate the RB-TK2051: VCC (referenced to GND), and V5

(referenced to G5). The V5 ground (G5) must be kept separate from the VCC ground (GND). GND and G5 are

joined at a common point on the RB-TK2050 Parallel Reference Board with a 0

Ω resistor (R1).

The Minimum and Maximum VCC supply voltages are +10V and +36V, respectively.

The V5 supply voltage is 5V. Please see the TK2050 Data Sheet for Minimum and Maximum values.

The VCC and V5 power supply connection (JP1) is a standard 4 pin, .156” Molex header. Please refer to the

Board Connection Diagram for the connector locations on the RB-TK2050 Parallel Reference Board.

OUTPUT

The output connection (J7) for the RB-TK2050 Parallel Reference Board is a standard 2 pin, .156” Molex

header. The output of the TK2050 is differential; the output has a positive output (OUT1+) and a negative output

(OUT1

Please refer to the Board Connection Diagram for the connector locations on the RB-TK2050 Parallel

Reference Board.

INPUT

The input connection for the RB-TK2050 Parallel Reference Board is an RCA connector (J10). The RCA

connector is labeled IN1 on the top of the PCB. The input shares a common ground referenced to G5. Please

refer to the Board Connection Diagram for the connector locations on the RB-TK2050 Parallel Reference Board.

JUMPER SETTINGS

There is a 2-pin header for the MUTE (J16) control of the TC2000. With the jumper in place the part is un-

muted. When the jumper is removed the mute pin is pulled high (5V) and the amplifier is muted. Please refer to

the Board Connection Diagram for the connector locations on the RB-TK2050 Parallel Reference Board.

INDICATOR LED’S

The RB-TK2050 Parallel Reference Board has an LED labeled HMUTE (D2). The LED will glow red and the

output is muted when a fault occurs or the MUTE header is set to V5. Please refer to the TK2050 Data Sheet

for a complete description of HMUTE. Please refer to the Board Connection Diagram for the LED locations on

the RB-TK2050 Parallel Reference Board.

OUTPUT OFFSET NULL

There is a potentiometer, R24 that is used to manually trim the output offset to 0Vdc. Please refer to the Board

Connection Diagram for the potentiometer location on the RB-TK2050 Parallel Reference Board. The

Reference Board is shipped the output offset nulled within +/-10mV.

GAIN SETTING

The gain of the RB-TK2050 Parallel Reference Board is set to 15V/V. The gain of the TK2050 is the product of

the TC2000 (control stage) gain and the TP2050 (power stage) gain. The control stage gain is set to unity.

Before changing the gain of the RB-TK2050 Parallel Reference Board, please refer to the Amplifier Gain section

of the TK2050 Data Sheet.