IDT821054APF IDT, Integrated Device Technology Inc, IDT821054APF Datasheet - Page 27

• Manufacturer Part Number: IDT821054APF
• Description: IC PCM CODEC QUAD MPI 64-TQFP
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: PCM Codec/Filterr

Specifications of IDT821054APF

• Data Interface: PCM Audio Interface
• Number Of Adcs / Dacs: 4 / 4
• Sigma Delta: No
• Voltage - Supply, Analog: 4.75 V ~ 5.25 V
• Voltage - Supply, Digital: 4.75 V ~ 5.25 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: 821054APF

IDT821054A QUAD PROGRAMMABLE PCM CODEC WITH MPI INTERFACE
GREG22: Global Loopback Control and PLL Power Down, Read/Write (35H/B5H)
The Level Meter Channel Select bits (CS[1:0]) select a channel, data on which will be level metered.
CS[1:0] = 00:
CS[1:0] = 01:
CS[1:0] = 10:
CS[1:0] = 11:
The PLL Power Down bit (PPD) controls the operation state of the PLL block.
PPD = 0:
PPD = 1:
The Loop Control bits determine the loopback status. Refer to
DLB_ANA = 0:
DLB_ANA = 1:
ALB_8k = 0:
ALB_8k = 1:
DLB_8k = 0:
DLB_8k = 1:
DLB_DI = 0:
DLB_DI = 1:
ALB_DI = 0:
ALB_DI = 1:
Command
I/O data
R/W
b7
Reserved
Channel 1 is selected (default);
Channel 2 is selected;
Channel 3 is selected;
Channel 4 is selected.
The PLL is disabled. The device is in normal operation state (default);
The PLL is powered down. The device works in power-saving mode. All clocks stop running.
The Digital Loopback via Analog Interface is disabled (default);
The Digital Loopback via Analog Interface is enabled.
The Analog Loopback via 8 kHz Interface is disabled (default);
The Analog Loopback via 8 kHz Interface is enabled.
The Digital Loopback via 8 kHz Interface is disabled (default);
The Digital Loopback via 8 kHz Interface is enabled.
The Digital Loopback from DR to DX is disabled (default);
The Digital Loopback from DR to DX is enabled.
The Analog Loopback from DX to DR is disabled (default);
The Analog Loopback from DX to DR is enabled.
b6
0
PPD
b5
1
DLB_ANA
27
b4
1
Figure - 4 on page 11
ALB_8k
b3
0
for detailed information.
DLB_8k
b2
1
DLB_DI
b1
INDUSTRIAL TEMPERATURE
0
ALB_DI
b0
1