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PDF G220 Data sheet ( Hoja de datos )
| Número de pieza | G220 | |
| Descripción | Ultra320 Multi-mode LVD/SE SCSI Terminator | |
| Fabricantes | Global Mixed-mode Technology | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de G220 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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Global Mixed-mode Technology Inc.
G220
Ultra320 Multi-mode LVD/SE SCSI Terminator
Features
General Description
Auto-selectable multi-mode Single-Ended
or LVD Termination
Meets SCSI-1, SCSI-2, SCSI-3 SPI Ultra
(Fast-20), Ultra 2(SPI-2 LVD), Ultra160 (SPI-3
LVD), and Ultra320 (SPI-4 LVD) standards
Supports active negation
3pF channel capacitance
2.9V to 5.5V operation
Thermal protection
Hot-Swap compatible
www.DataSheet4U.c5o%m tolerance on SE and LVD termination
resistance
SE/LVD mode indicators
28 pin TSSOP package
Applications
Server and workstation
High-end PC
Industrial PC
Disk Array (RAID)
SCSI cable
The G220 Multi-mode LVD/SE SCSI terminator pro-
vides a smooth transition into the next generation of
the SCSI Parallel Interface (SPI-4). It automatically
senses the bus, via DIFFSENS, and switches the ter-
mination to either single-ended (SE) or low voltage
differential (LVD) SCSI, dependent on which type of
devices are connected to the bus. If the G220 detects
a HVD SCSI device, it switches to a high impedance
state. For a 16-bit Wide SCSI bus to be operational,
three G220 terminators are needed.
The Multi-mode terminator contains all functions re-
quired to terminate and auto detect and switch modes
for SCSI Parallel Interface (SPI) bus architectures. For
the SE termination, one regulator and nine precision
110ohm resistors are used. For the LVD termination,
the G220 integrates 18 regulated supplies with nine
precision resistor strings.
Ordering Information
ORDER
NUMBER
MARKING
TEMP.
RANGE
PACKAGE
G220D3X
G220
0°C to +70°C
Note: X Specify the packing type
U: Tape & Reel
T: Tube
TSSOP-28L
Pin Configuration
VREF 1
R1+ 2
R1- 3
R2+ 4
R2- 5
NC/ HS GND 6
R3+ 7
R3- 8
R4+ 9
R4- 10
R5+ 11
R5- 12
DISCNCT 13
GND 14
G220
TSSOP-28L
28 TPWR
27 LVD
26 SE
25 R9-
24 R9+
23 R8-
22 R8+
21 R7-
20 R7+
19 R6-
18 R6+
17 DIFFB
16 DIFFSENSE
15 M/S
Ver: 0.1 Preliminary
Apr 03, 2003
1
TEL: 886-3-5788833
http://www.gmt.com.tw
1 page  
Global Mixed-mode Technology Inc.
Recommended Operating Conditions
PARAMETER
Termpower Voltage
Logic 0
Logic 1
Operating Temperature
SYMBOL
Vtpwr(SE)
Vtpwr(LVD)
Vil
Vih
Tamb
MIN
4.0
2.9
-0.3
2.0
0
TYP
5
5
MAX
5.5
5.5
+0.8
Vtpwr+0.3
70
G220
UNITS
V
V
V
°C
Electrical Characteristics
Unless otherwise specified, these specifications apply over the operating ambient temperature range of
0°C≤TA≤70°C.
www.DataSheet4U.com
PARAMETER
SYMBOL
CONDITION
MIN TYP MAX UNITS
LVD Terminator Section
Differential Mode Termination Resistance
Rdm
100 105 110 Ohms
Common Mode Termination Resistance Rcm
110 150 190 Ohms
Differential Mode Bias
Vdm
All lines Open
100 112 125
mV
Common Mode Bias
Vcm
1.125 1.25 1.375
V
Single Ended Terminator Section
Output Capacitance
Cout
Note
3 pF
SE Termination Resistance
Rse
Vline = 0-3.0 volts
104.5 110 115.5 Ohms
SE Voltage Reference
Vref
2.79 2.85 2.93 Volts
SE output Current
Iose Vline = 0.2 volts
25.4 mA
Regulator Section
Line Regulation
Load Regulation
Current Limit
Sink Current
LIREG
LOREG
ILIM
ISINK
1.0
1.3
350
200
2.5
3.5
%
%
mA
mA
DC Section
Termpower Current
Itpmr
SE mode (No Load)
LVD mode (No Load)
4 mA
20
Input Leakage High
Input Leakage Low
Output Current High
Output Current Low
DIFFSENS Section
Iih
Iil
Ioh Vout = 2.4 volts; SE/LVD Pins only
Iol Vout=0.4 volts; SE/LVD Pins only
-1.0
-1.0
4.0
µA
1.0 µA
mA
mA
DIFFSENS SE Operating Range
DIFFSENS LVD Operating Range
DIFFSENS HVD Operating Range
DIFFSENSE Driver Output Voltage
DIFFSENSE Driver Source Current
DIFFSENSE Driver Sink Current
Note: Guaranteed by Design.
Vseor
Vlvdor
Vhvdor
Vdso
Idsh
Idsl
M/S=1; Ids = 0-5mA
M/S = 1; Vdso=0V
M/S=1; Vdso=2.75V
-0.3 0.5 V
0.7 1.9 V
2.4 Vtpwr+0.3 V
1.2 1.4 V
5 15 mA
20 200 µA
Ver: 0.1 Preliminary
Apr 03, 2003
TEL: 886-3-5788833
http://www.gmt.com.tw
5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet G220.PDF ] | |
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