IDT821068PX IDT, Integrated Device Technology Inc, IDT821068PX Datasheet - Page 2

• 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

DESCRIPTION
channel PCM CODEC with on-chip filters. Besides the A-Law/ -Law
companding and linear coding/decoding (16-bit 2’s complement),
IDT821068 provides 2 programmable Tone generators per channel
(which can also generate ring signals), 1 FSK generator, 1 program-
mable Teletax Signal generator and 2 programmable chopper clocks
for SLIC.
receive filtering for voice telephone circuit to interface with time-division
multiplexed systems. An integrated programmable DSP realizes AC
Impedance Matching, Transhybrid Balance, Frequency Response
Correction and Gain Setting functions. The IDT821068 supports 2
PCM buses with programmable sampling edge, that allows an extra
delay of up to 7 clocks. Once the delay is determined, it is effective to
PIN CONFIGURATIONS
IDT821068 OCTAL PROGRAMMABLE PCM CODEC
The IDT821068 is a feature rich, single-chip, programmable 8
The digital filters in IDT821068 provide the necessary transmit and
IOM
®
-2 is a registered trademark of Siemens AG.
CI/DOUBLE
CCLK/TS
GND56
RESET
GND12
SB2_5
SO1_5
SO2_5
SO3_5
SO3_1
SO2_1
SO1_1
SB2_1
MPI
INT
CO
NC
NC
NC
NC
NC
NC
NC
NC
NC
CS
128 PIN PQFP
IDT821068
2
all eight channels of IDT821068. The device also provides 7 signaling
pins to SLIC on per channel basis.
Microprocessor Interface (MPI) and General Control Interface (GCI),
which is also known as ISDN Oriented Module (IOM
MPI and GCI programming, the device supports both compressed
and linear data format.
digital loopbacks and level metering function. It brings convenience to
system maintenance and diagnosis.
IDT821068. When off-hook signal is detected, IDT821068 can reverse
an output pin to stop ringing immediately.
applications such as Central Office Switch, PBX, DLC and Integrated
Access Device (IAD), i.e. VoIP and VoDSL.
The IDT821068 provides 2 programming interfaces:
The device also offers strong test capability with several analog/
A unique feature of ‘Hardware Ring Trip’ is implemented in
The IDT821068 can be used in digital telecommunication
INDUSTRIAL TEMPERATURE RANGE
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
SB2_8
SO1_8
SO2_8
SO3_8
GND78
GNDDP
NC
CHCLK1
CHCLK2
VDDDP
MCLK
BCLK/DCL
FS/FSC
NC
TSX2
DX2
DR2
TSX1
DX1/DU
DR1/DD
NC
GND34
SO3_4
SO2_4
SO1_4
SB2_4
®
-2). For both