CS8130_06 CIRRUS [Cirrus Logic], CS8130_06 Datasheet

CS8130_06

Manufacturer Part Number

CS8130_06

Description

Revision G Addendum

Manufacturer

CIRRUS [Cirrus Logic]

Datasheet

1.CS8130_06.pdf (4 pages)

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Cirrus Logic, Inc.

P.O. Box 17847, Austin, Texas 78760

(512) 445 7222 FAX: (512) 445 7581

http://www.cirrus.com

11/6/97

CS8130 Revision G Addendum

Multi-Standard Infrared Transceiver (DS134F1, SEP ‘05)

The following items represent permanent changes to the specification of the CS8130 IR transceiver.

1) The Silicon Revision Register (Register 28) reads 0010, indicating rev G silicon.

2) The default receive sensitivity setting is changed to 00011 (Register 6 resets to 0011).

3) Oscillator low power mode is now the default condition after reset (Register 21 resets to 0100).

4) The BLKR bit (Register 4, bit D2) blocks the RXD output data during those periods when the transmit

5) An additional control bit was added which causes the CS8130 receiver to ignore the falling edge of the

6) For IrDA/HP-SIR pulse width modes, two additional control bits have been added:

7) A TV remote receive mode hesitate bit has been added (Register 1, Bit D3). When this bit is set to 0,

8) The ASK transmit carrier frequency formula has changed:

http://www.cirrus.com

LEDs are on. This prevents the UART/system reading the transmitted data. The re-enable signal for

the receiver is delayed by 8 µs from when the LEDs are turned off. Set to 1 to block RXD data, set to

0 to allow RXD data through during transmission. This bit goes to 0 upon RESET.

IR pulse. This bit is called ENPOS, and it is bit D2 of Register #7. ENPOS is normally 1, which causes

the falling edge to be ignored. This results in greater range in IrDA and high-frequency ASK (Sharp

500 kHz) modes. ENPOS should be set to 0 for low-frequency amplitude modulated modes.

a. The THIN bit (Register 7, bit D1) allows the minimum acceptable pulse width to be reduced from

b. The WIDE bit (Register 1, Bit D2) expands the maximum allowable pulse width to 9/16 of a bit

For normal IrDA operation, it is recommended that THIN be set to 0 and WIDE be set to 1. Under these

conditions, the qualification boundaries for receiver mode 1c (receive 1.6 µs to 3/16 of a bit cell pulses)

are identical to the qualification boundaries for receiver mode 1a (fixed 1.6 µs pulses only). This bit

resets to 1.

the RXD pin will remain high until the first valid IR signal is detected. At that time, the RXD pin will

output serial data at the specified baud rate until the receiver is disabled (Register 0, bit D1). If this bit

is set to 1, the RXD pin will immediately and continuously output data. This bit resets to 0.

MD=(3.6864E6/FR)-2 , where MD is the Modulator Divider Value and FR is the desired modulation

frequency (Registers 10 & 11). The RESET default value for MD is now 5, yielding a default carrier

1 µs to 0.5 µs when set to 1. This bit has effect only when the receiver is programmed to mode 1a

(fixed 1.6 µs pulses only) or 1c (receive 1.6 µs to 3/16 of a bit cell pulses). This bit resets to 0.

cell when set to 1. This bit has effect only when the receiver is set to mode 1a (fixed 1.6 µs pulses

only).

Cirrus Logic, Inc. 1997

CS8130

DS134PP2-B

DS134F1-B1

DS134F1-B

MAR ‘06

NOV ‘97

SEP ‘05

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CS8130_06 Summary of contents

Page 1

CS8130 Revision G Addendum Multi-Standard Infrared Transceiver (DS134F1, SEP ‘05) The following items represent permanent changes to the specification of the CS8130 IR transceiver. 1) The Silicon Revision Register (Register 28) reads 0010, indicating rev G silicon. 2) The ...

Page 2

ASK Receive Choices - valid incoming frequency range (with RATS = 0 and 431 kHz to 609 kHz. 10) RATS register control of receive data frequency window period is now: T(min) ...

Page 3

RECEIVER CHARACTERISTICS Logic 1 = V+; unless otherwise specified) Parameter Input capacitance Input noise current Maximum signal input current from detector Maximum DC input current (typically sunlight) Input current detection thresholds (Programmable with a 5 bit value) Bandpass filter response ...

Page 4

DIGITAL PIN CHARACTERISTICS Parameter High-level Input Voltage Low-level Input Voltage High-level Output Voltage Low-level Output Voltage Output Leakage Current in Hi-Z state Input Leakage Current Output Capacitance Input Capacitance SPEC TABLE TITLE (INSERT 5 COLUMN TABLE) Parameter Power Supplies Input ...

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