參數(shù)資料
型號(hào)： STLC5048
廠商： 意法半導(dǎo)體
元件分類(lèi)： Codec
英文描述： FULLY PROGRAMMABLE FOUR CHANNEL CODEC AND FILTER
中文描述： 完全可編程四通道解碼器和過(guò)濾器
文件頁(yè)數(shù)： 1/45頁(yè)
文件大?。?/td> 371K
代理商： STLC5048
1/45
STLC5048
January 2003
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FULLY PROGRAMMABLE MONOLITHIC 4
CHANNEL CODEC/FILTER
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SINGLE +3.3V SUPPLY
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A/m LAW PROGRAMMABLE
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LINEAR CODING (16 BITS) OPTION
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PCM HIGHWAY FORMAT AUTOMATICALLY
DETECTED:1.536 or 1.544 MHz2.048, 4.096,
8192 MHz
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TWO PCM PORTS AVAILABLE
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TX GAIN PROGRAMMING: 33dB RANGE;
<0.01dB STEP
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RX GAIN PROGRAMMING:42dB RANGE;
<0.01dB STEP
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PROGRAMMABLE SLIC INPUT IMPEDANCE
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PROGRAMMABLE TRANSHYBRID BALANCE
FILTER
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PROGRAMMABLE EQUALIZATION
(FREQUENCY RESPONSE)
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PROGRAMMABLE TIME SLOT ASSIGNMENT
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DIGITAL AND ANALOG LOOPBACKS
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SLIC CONTROL PORTSTATIC (16 I/Os)
DYNAMIC (12 I/Os + 4 CS)
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BUILT-IN TEST MODE WITH TONE
GENERATION, MCU ACCESS TO PCM DATA
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64 TQFP (10X10mm) PACKAGE
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PROGRAMMABLE SLIC LINE CURRENT
LIMITATION
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PROGRAMMABLE SLIC OFF-HOOK
DETECTION THRESHOLD
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
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/
μ
), 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.
TQFP64 (10x10mm)
ORDERING NUMBER: STLC5048
FULLY PROGRAMMABLE
FOUR CHANNEL CODEC AND FILTER
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