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STLC5048 Datasheet

  • STLC5048

  • FULLY PROGRAMMABLE FOUR CHANNEL CODEC AND FILTER

  • 371.68KB

  • 45頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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STLC5048
FULLY PROGRAMMABLE
FOUR CHANNEL CODEC AND FILTER
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FULLY PROGRAMMABLE MONOLITHIC 4
CHANNEL CODEC/FILTER
SINGLE +3.3V SUPPLY
A/m LAW PROGRAMMABLE
LINEAR CODING (16 BITS) OPTION
PCM HIGHWAY FORMAT AUTOMATICALLY
DETECTED:1.536 or 1.544 MHz2.048, 4.096,
8192 MHz
TWO PCM PORTS AVAILABLE
TX GAIN PROGRAMMING: 33dB RANGE;
<0.01dB STEP
RX GAIN PROGRAMMING:42dB RANGE;
<0.01dB STEP
PROGRAMMABLE SLIC INPUT IMPEDANCE
PROGRAMMABLE TRANSHYBRID BALANCE
FILTER
PROGRAMMABLE EQUALIZATION
(FREQUENCY RESPONSE)
PROGRAMMABLE TIME SLOT ASSIGNMENT
DIGITAL AND ANALOG LOOPBACKS
SLIC CONTROL PORTSTATIC (16 I/Os)
DYNAMIC (12 I/Os + 4 CS)
BUILT-IN TEST MODE WITH TONE
GENERATION, MCU ACCESS TO PCM DATA
64 TQFP (10X10mm) PACKAGE
PROGRAMMABLE SLIC LINE CURRENT
LIMITATION
PROGRAMMABLE SLIC OFF-HOOK
DETECTION THRESHOLD
TQFP64 (10x10mm)
ORDERING NUMBER: STLC5048
buffer driving the SLIC RX input and on an amplifier
input stage normally driven by the SLIC TX output.
Due to the single supply voltage a midsupply refer-
ence level is generated internally by the device and
all analog signals are referred to this level (AGND).
The PCM interface uses one common 8KHz frame
sync. pulse for transmit and receive direction. The bit
clock is automatically detected between four stan-
dards: 1.563/1.544MHz, 2.048MHz, 4.096MHz,
8192MHz.
Two PCM port are provided: the channels can be
connected to port A or/and B.
Device programmability is achieved by means of
several registers and commands allowing to set the
different parameters like TX/RX gains, line imped-
ance, transhybrid balance, equalization (frequency
response), encoding law (A/碌), time slot assignment,
independent channels power up/down, loopbacks,
PCM bits offset.
The STLC5048 can be programmed via serial inter-
face running up to 8 MHz. One interrupt output pin is
also provided.
A GUI interface is also available to emulate and pro-
gram the coefficients for impedance synthesis, echo
cancelling and channel filtering.
DESCRIPTION
The STLC5048 is a monolithic fully programmable 4
channel CODEC and filter. It operates with a single
+3.3V supply.
The analog interface is based on a receive output
January 2003
1/45

STLC5048 產(chǎn)品屬性

  • 160

  • 集成電路 (IC)

  • 接口 - 編解碼器

  • -

  • PCM 編解碼器/濾波器

  • PCM 音頻接口

  • 16 b

  • 4 / 4

  • 是

  • -

  • -

  • 3.3 V ~ 5 V

  • 3.3 V ~ 5 V

  • -40°C ~ 85°C

  • 表面貼裝

  • 64-LQFP

  • 64-LQFP（10x10）

  • 托盤

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