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PDF PI3EQX3851B Data sheet ( Hoja de datos )
| Número de pieza | PI3EQX3851B | |
| Descripción | 1-port SATA2/SAS ReDriver | |
| Fabricantes | Pericom Semiconductor Corporation | |
| Logotipo |  |
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Features
• SATA2 i, m; external SATA2
• Two 3.0Gbps differential signal pairs
• Adjustable Receiver Equalization
• 100-Ohm Differential CML I/O’s
• Independent Analog output swing adjustment
• Independent Analog Output Emphasis Control
• Input signal level detect and squelch for each channel
• OOB Support
• Low Power (200mW per Channel)
• Stand-by Mode – Power Down State
• VDD Operating Range: 3.3V
• Packaging:
− 20-TQFN (3.5x 4.5mm, ZH)
− 20-TQFN (4x 4mm, ZD)
Block Diagram
Signal Detection
PI3EQX3851B
3.3V, 1-port, SATA2 i/m ReDriver™
with Analog Output Adjustment
Description
Pericom Semiconductor’s PI3EQX3851B is a low power, signal
ReDriver. The device provides programmable equalization, to
optimize performance over a variety of physical mediums by
reducing Inter-Symbol Interference. PI3EQX3851B supports
two 100-Ohm Differential CML data I/O’s between the Protocol
ASIC to a switch fabric, across a backplane, or to extend the
signals across other distant data pathways on the user’s platform.
The integrated equalization circuitry provides flexibility with
signal integrity of the signal before the ReDriver.
A low-level input signal detection and output squelch function
is provided for each channel. Each channel operates fully
independently. When the channels are enabled (CE=1) and
operating, that channels input signal level (on xI+/-) determines
whether the output is active. If the input signal level of the channel
falls below the active threshold level (Vth-) then the outputs are
driven to the common mode voltage.
In addition to signal conditioning, when CE = 0, the device
enters a low power standby mode.
Pin Diagram (Top Side View)
3.5x4.5mm (ZH)
A_EQ
AI+
AI-
DNC
VDD33
BO-
BO+
B_EM
1 20
2 19
3 18
4 17
5
GND
16
6 15
7 14
8 13
9 12
10 11
A_EM
AO+
AO-
VDD33
DNC
BI-
BI+
B_EQ
CML
XI+
XI –
x_EQ
CE
Equalizer
Limiting
Amp
- Repeated 2 times -
Power
Management
08-0252
ReDriver is a trademark of Pericom Semiconductor.
CML
XO+
XO –
x_EM
x_OS
4x4mm (ZD)
AI+
AI-
VDD33
BO-
BO+
20 19 18 17 16
1 15
2 14
3 GND 13
4 12
5 11
6 7 8 9 10
AO+
AO-
VDD33
BI-
BI+
1
PS9009A
04/03/09
1 page  
www.DataSheet4U.com
AC/DC Electrical Characteristics
Symbol
Parameter
Conditions
CML Transmitter Output (100Ω differential)
ZTX-DIFF-DC
DC Differential TX Impedance
VTX-DIFFP-P
Differential Peak-to-peak Out-
put Voltage
VTX-DIFFP-P = 2 * |
VTX-D+ - VTX-D- |
For ROS=3.2K,
REM=7.3K
VTX-C
tF, tR
tF-tR
Common-Mode Voltage
Transition Time
Mis-match Transition Time
| VTX-D+ + VTX-D-|/2
20% to 80%(1)
3G only; HFTP, MFTP
Vamp_bal
TX amplitude imbalance
3G only; HFTP, MFTP
Tskew
TX differential skew
1.5G and 3G; HFTP,
MFTP
Vcm_ac
VcmOOB
TX AC common mode voltage 3G only; MFTP
OOB common mode delta
voltage
VdiffOOB
VTX-Pre-Ratio-max
Sdd11_TX
OOB differential delta voltage
Max TX Pre-emphasis Level
TX differential mode return
loss
75MHz-300MHz
300MHz-600MHz
600MHz-2.4GHz
2.4GHz-3.0GHz
3.0 GHz-5.0GHz
Scc11_TX
TX common mode return loss
150MHz-300MHz
300MHz-600MHz
600MHz-1.2GHz
1.2GHz-5.0GHz
Sdc11_TX
TX impedance balance
150MHz-300MHz
300MHz-600MHz
600MHz-2.4GHz
2.4GHz-5.0GHz
LVCMOS Control Pins
VIH Input High Voltage
VIL Input Low Voltage
IIH Input High Current
IIL Input Low Current
PI3EQX3851B
3.3V, 1-Port, SATA2 i/m ReDriver™
with Analog Output Adjustment
Min.
Typ.
Max.
Units
80 100 120 Ohm
250 800
mV
475 525
1 1.8 V
150 ps
20 %
10 %
20 ps
50 mVpp
50 mV
25
4 dB
14
18
6 dB
3
1
8
5
2
dB
1
30
20
10
dB
4
0.65 × VDD
0.35 ×
VDD
5
100
V
μA
08-0252
ReDriver is a trademark of Pericom Semiconductor.
5
PS9009A
04/03/09
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet PI3EQX3851B.PDF ] | |
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