NSK70721PE.C2 Intel, NSK70721PE.C2 Datasheet - Page 7

• Manufacturer Part Number: NSK70721PE.C2
• Manufacturer: Intel

Specifications of NSK70721PE.C2

• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (min): 4.75V
• Operating Supply Voltage (max): 5.25V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 28
• Lead Free Status / RoHS Status: Supplier Unconfirmed

1.0
Datasheet
Figure 1. SK70725/SK70721 Block Diagram
Features
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Fully integrated, 2-chip transceiver. Compliant with the following standards:
Integrated line drivers, filters and hybrid circuits reduce the number of external components
required
Multiple framing modes: Transparent, T1 standard, E1 standard
Independent transmit and receive clocks for minimum delay
Tolerance for extended signal interruptions
Single +5V supply
Supports processor directed rate selection driven by receive signal level and noise margin
Continuously adaptive echo canceller and equalizers maintain excellent transmission
performance with changing noise and line characteristics
Typical noise-free transmission range:
272 kbps
25.3 kft (7.7 km) on 24 AWG (0.5 mm) wire
17.1 kft (5.2 km) on 26 AWG (0.4 mm) wire
784 kbps
19.8 kft (6.0 km) on 24 AWG (0.5 mm) wire
13.7 kft (4.2 km) on 26 AWG (0.4 mm) wire
1,168 kbps
17.1 kft (5.2 km) on 24 AWG (0.5 mm) wire
12.3 kft (3.7 km) on 26 AWG (0.4 mm) wire
— ITU G.991.1
— ANSI Committee T1E1.4-TR28 (T1E1.4/96-006)
— ETSI ETR-152
MASTER_CLK
INDICATORS
CONTROL
MODE
STATUS
CLOCK
DATA
AND
I/F
P
Enhanced Multi-Rate DSL Data Pump Chip Set — SK70725/SK70721
Logic
Back
End
Scrambler
Decision
Framer
Circuit
Control
Logic
Detector
Phase
DFE
EDSP
Select
Data
Activation
Control
DAGC
AGC
FFE
Tap
E
n
c
o
d
e
r
Canceller
Echo
mator
Deci
SRCTL_FS
VCO_CLK
AGC_SET
SER_CTL
TX_CLK
TMAG
AD0
AD1
TSGN
Encoder
2B1Q
Serial
I/F
IAFE
VCO
Fltr
AGC
To Various
Tx
Blocks
VREF
Driver
Line
TTIP
TRING
RTIP
BRING
RRING
BTIP
XI
XO
VPLL
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