T8535

Features: ` 5 V operation` Per-channel programmable gains, equalization, termination impedance, and hybrid balance` Programmable m-law, or A-law modes - Up to 256 time slots per frame - Supports PCM data rates of 512 kbits/s to 16.384 Mbits/s - Double-clock mode timing compatible with ISDN standar...

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T8535 Picture
SeekIC No. : 004511567 Detail

T8535: Features: ` 5 V operation` Per-channel programmable gains, equalization, termination impedance, and hybrid balance` Programmable m-law, or A-law modes - Up to 256 time slots per frame - Supports PCM...

floor Price/Ceiling Price

Part Number:
T8535
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/10/30

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Product Details

Description



Features:

5 V operation
Per-channel programmable gains, equalization, termination impedance, and hybrid balance
Programmable m-law, or A-law modes
   - Up to 256 time slots per frame
   - Supports PCM data rates of 512 kbits/s to 16.384 Mbits/s
   - Double-clock mode timing compatible with ISDN standard interfaces
Fully programmable time-slot assignment with bit offset
Analog and digital loopback test modes
Serial microprocessor interface
   - Normal and byte-by-byte control modes
   - Fast scan mode
Six bidirectional control leads per channel, for SLIC and line card function control
Differential analog output
   - Mates directly to SLICs, eliminating external components
Sigma-delta converters with dither noise reduction
Quad design to minimize package count on dense line card applications
Meets or exceeds ITU-T G.711   -G.712 and relevant
   Telcordia Technologies* requirements



Pinout

  Connection Diagram


Specifications

Parameter
Symbol
Min
Max
Unit
Storage Temperature Range
Tstg
-55
150
Power Supply Voltage (all leads designated power)
VDDX
-
6.5
V
Negative Voltage on Any Lead with Respect to Ground
VSS
-0.25
-
V
Thermal Resistance, Junction to Ambient:
68-Pin PLCC1
44-Pin PLCC1
64-Pin TQFP2
100-Pin TQFP2

RJA
RJA
RJA
RJA

-
-
-
-

43
49
40
30

/W
/W
/W
/W
Package Power Dissipation
PD
-
1
W
SLIC Control Interface Latches, Current per Device
IL
-
160
mA

1. Sparse copper, one layer test board.
2. Four layer, JEDEC test board.

Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess of those given in the operational section of the data sheet. Exposure to absolute maximum ratings for extended eriods can adversely affect device reliability.




Description

The T8535 consists of four independent channels of codec and digital signal processing functions on one chip. In addition to the classic A-to-D and D-to-A conversion, each channel provides termination impedance synthesis and a hybrid balance network.

The T8535 is controlled by a serial microprocessor interface, and a series of bidirectional I/O leads are provided so that this control mechanism can be utilized to operate the battery feed device, ringing voltage switches, etc. Common data and clock paths can be shared over any number of devices. All the filter coefficients, signal processing, SLIC, and test features are accessible through this interface. This serial interface can be operated at speeds up to 4.096 Mbits/s.

The choice of a PCM bus is also programmable, with any channel capable of being assigned to any time slot. The PCM bus can be operated at speeds up to 16.384 Mbits/s, allowing for a maximum of 256 time slots. Separate transmit and receive interfaces are available for 4-wire bus designs, or they can be strapped together for a 2-wire PCM bus.

The T8535 is available in four packages.

The T8536 64-pin TQFP features five data latches per channel and has two PCM ports.

The T8535 100-pin TQFP features six data latches per channel and has two PCM ports.

The T8536 68-pin PLCC features six data latches per channel and has one PCM port.

The T8535 44-pin PLCC has no data latches and one PCM port. The T8535 and the T8533 Quad Programmable Line Card Signal Processor with Echo Cancellation are pin compatible, as are the T8536 68-pin PLCC device and the T8534 68-pin PLCC Quad Programmable Line Card Signal Processor with Echo Cancellation.




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