STLC5046 STMicroelectronics, STLC5046 Datasheet - Page 35

• Manufacturer Part Number: STLC5046
• Description: IC CODEC/FLTR PROG QUAD 64-TQFP
• Manufacturer: STMicroelectronics
• Type: PCM Codec/Filterr

Specifications of STLC5046

• Data Interface: PCM Audio Interface
• Resolution (bits): 16 b
• Number Of Adcs / Dacs: 4 / 4
• Sigma Delta: Yes
• Voltage - Supply, Analog: 3.3 V ~ 5 V
• Voltage - Supply, Digital: 3.3 V ~ 5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 64-TQFP, 64-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 497-3665

STLC5046
3.1.26
Pin-strap value (value=00h):
Persistency Check register (PCHK-A/B)
Two input signals per channel, labeled A and B, are submitted to persistency check.
In dynamic mode (STA=0), A and B inputs of the four channels, are sampled on the
multiplexed lines IO0 (pin13) and IO1 (pin14).
In static mode (STA=1) the persistency check is performed on four pairs of lines, assigned to
each channel according to the table:
Addr=1Fh; Reset Value=00h
Addr=20h; Reset Value=00h
TA7..0 and TB7..0, content of PCHKA and PCHKB registers, define the minimum duration of
input A and B to generate interrupt; spurious transitions shorter than the programmed value
are ignored.
The time width can be calculated according to the formula:
Time-Width A = (TA7..0) x 64 µs
Time-Width B = (TB7..0) x 64 µs
If PCHKA/B is programmed to 00h the persistency check is not performed and any detected
transition will generate interrupt.
All the inputs, with or without persistency check, are sampled with a repetition rate of 32µs
Pin-strap value:
Bit7
TB7
TA7
1
0
CHAN#
0
1
2
3
Bit6
TB6
TA6
1
0
Bit5
TB5
TA5
1
0
Doc ID 7052 Rev 5
Bit4
TB4
TA4
1
0
IO10 (pin 44)
IO0 (pin 19)
IO4 (pin 17)
IO6 (pin 48)
Input A
Bit3
TB3
TA3
1
0
Bit2
TB2
TA2
1
0
Registers addresses
IO11 (pin 43)
IO1 (pin 20)
IO5 (pin 18)
IO7 (pin 47)
Bit1
TB1
TA1
Input B
1
0
Bit0
TB0
TA0
1
0
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