IDT821068PX IDT, Integrated Device Technology Inc, IDT821068PX Datasheet - Page 32

• Manufacturer Part Number: IDT821068PX
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: General Purposer

Specifications of IDT821068PX

• Number Of Adc's: 8
• Number Of Dac's: 8
• Interface Type: Serial
• Power Supply Type: Analog/Digital
• Operating Supply Voltage (min): 4.75V
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.25V
• Pin Count: 128
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Screening Level: Industrial
• Package Type: PQFP
• Mounting: Surface Mount
• Lead Free Status / Rohs Status: Not Compliant

5. Dual Tone Frequency Setting (04H, 05H, 06H/84H, 85H, 86H), Read/Write
T1[11:0] bits is the Tone1 frequency on corresponding channel.
6. Tone Enable and Tone Gain (07H/87H), Read/Write
7. Transmit Time slot and Transmit Highway Selection (08H/88H), Read/Write (For MPI mode only)
127d corresponding to TS0 to TS127. The default value of TT[6:0] is N for Channel N+1 (N = 0 to 7).
8. Receive Time slot and Highway Selection (09H/89H), Read/Write (For MPI mode only)
corresponding to TS0 to TS127. The default value of RT[6:0] is N for Channel N+1 (N = 0 to 7).
9. Channel I/O Data (0AH/8AH), Read/Write (For MPI mode only)
value is ‘0d’. It should be noted that both SB1 and SB2 are read only in this command.
IDT821068 OCTAL PROGRAMMABLE PCM CODEC
The decimal value of Dual Tone Frequency Setting bits (T0[11:0]) is the frequency of Tone0 on corresponding channel. The decimal value of
Tone Gain bits (TG[5:0]) are used to determine the gain of dual tone signal on corresponding channel.
where: G is the desired tone gain, and Tg is the decimal value of TG[5:0].
Tone 1 Enable and Tone 0 Enable bits T1E and T0E are used to activate tone 1 or tone 0 on corresponding channels.
Transmit Time slot bits (TT[6:0]) determine which time slot will be used to transmit data for corresponding channel. The valid value is 0d -
Transmit Highway Selection bit (THS) selects the PCM highway on corresponding channel to transmit voice data.
Receive Time slot bits RT[6:0] determine which time slot will be used to receive data for corresponding channel. The valid value is 0d - 127d
Receive Highway Selection bit RHS selects the PCM highway on corresponding channel to receive voice data.
Channel I/O Data bits contain the information of SLIC I/O pins SI1, SI2, SB1, SB2, SO1, SO2 and SO3 on corresponding channel. Default
G = 20 lg(Tg 2/256) + 3.14
T1E = 0: Tone1 is disabled at the peak value in phase 90 degree (default);
T1E = 1: Tone1 is enabled at zero-crossing;
T0E = 0: Tone0 is disabled at the peak value in phase 90 degree (default);
T0E = 1: Tone0 is enabled at zero-crossing.
THS = 0: DX1 is selected (default);
THS = 1: DX2 is selected.
RHS = 0: DR1 is selected (default);
RHS = 1: DR2 is selected.
Command
Command
Command
Command
Command
Command
Command
I/O data
I/O data
I/O data
I/O data
I/O data
I/O data
I/O data
T1[11]
T0[7]
T1[3]
R /W
R /W
THS
RHS
R /W
R /W
T1E
R /W
R /W
R /W
b7
b7
b7
b7
b7
b7
b7
R
T1[10]
T0[6]
T1[2]
TT[6]
RT[6]
SO3
T0E
b6
b6
b6
b6
b6
b6
b6
0
0
0
0
0
0
0
T0[5]
T1[1]
TG[5]
RT[5]
T1[9]
TT[5]
SO2
b5
b5
b5
b5
b5
b5
b5
0
0
0
0
0
0
0
32
T0[4]
T1[0]
TG[4]
RT[4]
T1[8]
TT[4]
SO1
b4
b4
b4
b4
b4
b4
b4
0
0
0
0
0
0
0
T0[11]
TG[3]
T0[3]
TT[3]
RT[3]
T1[7]
SI1
b3
b3
b3
b3
b3
b3
b3
0
0
0
0
1
1
1
T0[10]
T0[2]
TG[2]
RT[2]
T1[6]
TT[2]
SI2
b2
b2
b2
b2
b2
b2
b2
1
1
INDUSTRIAL TEMPERATURE RANGE
1
1
0
0
0
TG[1]
T0[1]
T0[9]
TT[1]
RT[1]
T1[5]
SB1
b1
b1
b1
b1
b1
b1
b1
0
0
1
1
0
0
1
T0 [8]
T0[0]
TG[0]
RT[0]
T1[4]
TT[0]
SB2
b0
b0
b0
b0
b0
b0
b0
0
1
0
1
0
1
0