82V1068PF8 IDT, Integrated Device Technology Inc, 82V1068PF8 Datasheet - Page 19

• Manufacturer Part Number: 82V1068PF8
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of 82V1068PF8

• Single Supply Voltage (typ): 3.3V
• Single Supply Voltage (min): 3.135V
• Single Supply Voltage (max): 3.6V
• Package Type: TQFP
• Lead Free Status / Rohs Status: Not Compliant

IDT82V1068 OCTAL PROGRAMMABLE PCM CODEC
Abbreviation List
LPF/AA: Anti-Alias Low-pass Filter
LPF/SC: Smoothing Low-pass Filter
LPF: Low-pass Filter
HPF: High-pass Filter
GIS: Gain for Impedance Scaling
D1: 1st Down Sample Stage
D2: 2nd Down Sample Stage
U1: 1st Up Sample Stage
U2: 2nd Up Sample Stage
UF: Up Sampling Filter (64k-128k)
VOUT
VIN
Command 26
Command 2
Command 3
These loopbacks and receive PCM cutoff are controlled by Global Command 26, Local Command 1 and Local Command 2 as shown in the following. Once its corresponding bit in the command
is set to 1, the loopback will be enabled.
Global
Local
Local
Analog
LPF/AA
LPF/SC
Local Command1:CS[2]
1 = enable(normal)
0 = disable(cut)
ALB_64k
MSB
MSB
MSB
IE[3]
∑
−
∆
∑
@2MHz
−
∆
PLLPD
IE[2]
GIS
Local Command1:CS[0]
1 = enable(normal)
0 = disable(cut)
U1
DLB_64k
IE[1]
D1
UF
Figure 9 Signal Flow for Each Channel
@64KHz
DLB_ANA
Reserved
IMF
IE[0]
Transmit Path
Receive Path
ECF
Local Command1:CS[1]
1 = enable(normal)
0 = disable(cut)
GRX
GTX
CUTOFF
ALB_8k
19
IMF: Impedance Matching Filter
ECF: Echo Cancellation Filter
GTX: Gain for Transmit Path
GRX: Gain for Receive Path
FRX: Frequency Response Correction for Transmit
FRR: Frequency Response Correction for Receive
CMP: Compression
EXP: Expansion
TSA: Time slot Assignment
U2
D2
DLB_PCM
@16KHz
LPF
DLB_8k
LPF
FRX
FRR
ALB_1BIT
DLB_DI
@8KHz
FSK
Local Command1:CS[3]
1 = enable(normal)
0 = disable(Bypass)
INDUSTRIAL TEMPERATURE RANGE
HPF
DLB_1BIT
ALB_PCM
Bold Black Framed:
Programmable Filters
Fine Black Framed:
Fixed Filters
ALB_DI
LSB
LSB
LSB
Dual tone
Level meter
CMP
CUT-OFF-PCM
EXP
TS
TSA
TSA
PCM
Highway
DR1/DR2
DX1/DX2