RS8973 Mindspeed Technologies, RS8973 Datasheet - Page 9

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RS8973

Manufacturer Part Number
RS8973
Description
Single-chip Sdsl/hdsl Transceiver
Manufacturer
Mindspeed Technologies
Datasheet

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RS8973
Single-Chip SDSL/HDSL Transceiver
List of Figures
N8973DSD
Figure 1-1.
Figure 1-2.
Figure 1-3.
Figure 1-4.
Figure 2-1.
Figure 2-2.
Figure 2-3.
Figure 2-4.
Figure 2-5.
Figure 2-6.
Figure 2-7.
Figure 2-8.
Figure 4-1.
Figure 4-2.
Figure 5-1.
Figure 5-2.
Figure 5-3.
Figure 5-4.
Figure 5-5.
Figure 5-6.
Figure 5-7.
Figure 5-8.
Figure 5-9.
Figure 5-10.
Figure 5-11.
Figure 5-12.
Figure 5-13.
Figure 5-14.
Figure 5-15.
Figure 5-16.
Figure 5-17.
Figure 5-18.
Figure 5-19.
Figure 5-20.
Figure 5-21.
Figure 5-22.
Figure 5-23.
Figure 5-24.
HDSL T1/E1 Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Detailed Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Pin Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Regenerator System Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
Transmit Section Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
First-Order Echo Cancellation Using the Variable Gain Amplifier . . . . . . . . . . . . . . . . . . . . . 2-5
Receiver Digital Signal Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Digital Front-End Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Timing Recovery and Clock Interface Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Serial Sign-Bit First Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Parallel Master Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Parallel Slave Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Crystal Oscillator Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
MCLK Timing Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Clock Control Timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Channel Unit Interface Timing, Parallel Master Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Channel Unit Interface Timing, Parallel Slave Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Channel Unit Interface Timing, Serial Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
MCI Write Timing, Intel Mode (MOTEL = 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
MCI Write Timing, Motorola Mode (MOTEL = 1). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
MCI Read Timing, Intel Mode (MOTEL = 0). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12
MCI Read Timing, Motorola Mode (MOTEL = 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12
Internal Write Timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
JTAG Interface Timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15
SMON Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15
Transmit Pulse Template for Two- and Three-Pair Systems; Normalized Pulse Mask. . . . 5-18
Transmit Pulse Template for One-Pair Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19
Upper Bound of the Average PSD of a 392 kbaud System . . . . . . . . . . . . . . . . . . . . . . . . 5-20
Upper Bound of the Average PSD of a 584 kbaud System . . . . . . . . . . . . . . . . . . . . . . . . 5-20
Upper Bound of the Average PSD of a 1160 kbaud System . . . . . . . . . . . . . . . . . . . . . . . 5-21
Transmitter Test Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22
Standard Output Load (Totem Pole and Three-State Outputs) . . . . . . . . . . . . . . . . . . . . . 5-22
Open-Drain Output Load (IRQ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22
Input Waveforms for Timing Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23
Output Waveforms for Timing Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23
Output Waveforms for Three-state Enable and Disable Tests . . . . . . . . . . . . . . . . . . . . . . 5-24
100-Pin PQFP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-25
Line Interface Interconnection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Preliminary Information
Conexant
List of Figures
ix

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