TP3054B Datasheet, PDF (3/17 Pages) Texas Instruments – MONOLITHIC SERIAL INTERFACE COMBINED PCM CODEC AND FILTER

TP3054B, TP3057B, TP13054B, TP13057B
MONOLITHIC SERIAL INTERFACE
COMBINED PCM CODEC AND FILTER
SCTS042A – MAY 1990 – REVISED JULY 1996
Terminal Functions
TERMINAL
NAME
NO.
ANLG GND
2
BCLKR/CLKSEL 7
BCLKX
10
DR
6
DX
11
FSR
5
FSX
12
GSX
14
MCLKR/PDN
8
MCLKX
9
TSX
13
VBB
1
VCC
4
VFRO
3
VFXI +
16
VFXI –
15
DESCRIPTION
Analog ground. All signals are referenced to ANLG GND.
The bit clock that shifts data into DR after the FSR leading edge. May vary from 64 kHz to 2.048 MHz. Alternately,
BCLKR/CLKSEL can be a logic input that selects either 1.536 MHz/1.544 MHz or 2.048 MHz for the master clock in
the synchronous mode. BCLKX is used for both transmit and receive directions (see Table 1).
The bit clock that shifts out the PCM data on DX. BCLKX can vary from 64 kHz to 2.048 MHz, but must be synchronous
with MCLKX.
Receive data input. PCM data is shifted into DR following the FSR leading edge.
The 3-state PCM data output that in enabled by FSX
Receive frame-sync pulse input that enables BCLKR to shift PCM data in DR. FSR is an 8-kHz pulse train (see
Figures 1 and 2 for timing details).
Transmit frame-sync pulse that enables BCLKX to shift out the PCM data on DX. FSX is an 8-kHz pulse train (see
Figures 1 and 2 for timing details).
Analog output of the transmit input amplifier. GSX is used to externally set gain.
Receive master clock (must be 1.536 MHz, 1.544 MHz, or 2.048 MHz). May be synchronous with MCLKX, but should
be synchronous with MCLKX for best performance. When MCLKR is connected continuously low, MCLKX is selected
for all internal timing. When MCLKR is connected continuously high, the device is powered down.
Transmit master clock (must be 1.536 MHz, 1.544 MHz, or 2.048 MHz). May be asynchronous with MCLKR.
Open-drain output that pulses low during the encoder time slot
Negative power supply pin. VBB = – 5 V ± 5%
Positive power supply pin. VCC = 5 V ± 5%
Analog output of the receive filter
Noninverting input of the transmit input amplifier
Inverting input of the transmit input amplifier
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