UCB1400BE,151 NXP Semiconductors, UCB1400BE,151 Datasheet - Page 32

• Manufacturer Part Number: UCB1400BE,151
• Description: IC AUDIO CODEC 3.3V 48-LQFP
• Manufacturer: NXP Semiconductors
• Type: Audio Codec '97r

Specifications of UCB1400BE,151

• Package / Case: 48-LQFP
• Data Interface: Serial
• Resolution (bits): 20 b
• Number Of Adcs / Dacs: 2 / 2
• Sigma Delta: No
• S/n Ratio, Adcs / Dacs (db) Typ: 97 / 91
• Voltage - Supply, Analog: 3 V ~ 3.6 V
• Voltage - Supply, Digital: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935269304151; UCB1400BE-SNXP; UCB1400BE-SNXP

Philips Semiconductors
12. Register definition
9397 750 09611
Product data
The following tables describe the register definition for the UCB1400. The UCB1400
shall follow the AC ’97 2.1 Interoperability Requirements and Recommendations as
follows:
•
•
•
•
•
Non-implemented or reserved register bits: All reserved or non-implemented
register bits (marked ‘X’ in the tables) are required to return ‘0’ when read.
Non-implemented Addresses: Read access to non-implemented registers are
required to echo a ‘valid’ 7-bit register address in Input Slot 1 and return ‘valid’
0x0000 data in Input Slot 2 on the next AC-link frame.
Odd Register Addresses: Read (and write) access to odd register addresses are
required to be treated the same as non-implemented addresses, instead of
aliasing them to the next lower even-numbered register.
Codec register read data need to be returned in the next AC-link frame following
the frame in which the read request occurs.
Codec-Ready and audio DAC/ADC status bits shall only change from ‘ready’ to
‘not ready’ in response to a PR state change issued by the Controller to the
Power-down Control/Status registers 0x26. This guarantees that once data is
actively flowing on a slot, the Controller does not have to continuously read the
Power-down Control/Status register to detect any unexpected Codec PR status
change.
Rev. 02 — 21 June 2002
Audio codec with touch screen controller
and power management monitor
© Koninklijke Philips Electronics N.V. 2002. All rights reserved.
UCB1400
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