User's Manual
PART 2 – Embedded Wireless Modems Chapter 5 – SocketModem HSDPA
Multi-Tech Systems, Inc. Universal Socket Hardware Guide for Developers (S000342K) 83
DC Electrical Characteristics
I/O DC Characteristics
5VDC Characteristics (VDD = 5V ± 0.25V) VDDMAX = 5.25V
Digital Inputs
–DTR (40), –TXD (35), –RTS (33)
Input High
Min 2.0V
Input Low
Max 0.8V
–
RESET Input High
Min 2.6V
Input Low
Max 1.0V
Digital Outputs
–DCD (39), –CTS (38), –DSR (37), –RI (36), –RXD (34)
Output High
Min 4V
Output Low
Max 0.4V
Current Drive
2mA
Digital Input Capacitance
5 pF
Power Measurements*
Data Mode Power Consumption
GPRS Power Consumption in EGSM/GPRS 900 MHz and GSM/GRPS 850 MHz
V
oltage Conditions I
NOM
I
MAX
+5V
During TX bursts @ 2W 1.8 A 2.9 A
+5V
Average Class 8 375mA
+5V
Average Class 10 540mA
+5V
Average idle mode 40mA
GPRS Power Consumption in GSM/GRPS 1800 MHz and GSM/GRPS 1900 MHz
V
oltage Conditions I
NOM
I
MAX
+5V
During TX bursts @ 1W 1.5 A 2.1 A
+5V
Average Class 8 325mA
+5V
Average Class 10 430mA
+5V
Average idle mode 40mA
EGPRS Power Consumption in EGRPS 900 MHz and EGRPS 850 MHz
V
oltage Conditions I
NOM
I
MAX
+5V
During TX bursts @ 2W 1.8 A 2.9 A
+5V
Average Class 8 315mA
+5V
Average Class 10 410mA
+5V
Average idle mode 40mA
EGPRS Power Consumption in EGRPS 1800 MHz and EGRPS 1900 MHz
V
oltage Conditions I
NOM
I
MAX
+5V
During TX bursts @ 2W 1.8 A 2.9 A
+5V
Average Class 8 290mA
+5V
Average Class 10 355mA
+5V
Average idle mode 40mA
WCDMA Power Consumption
V
oltage Conditions I
NOM
I
MAX
+5V
UMTS Data transfer Band I @+10dBm 390mA
+5V
HSDPA Data transfer Band I @+10dBm 450mA
+5V
UMTS Data transfer Band I @+23dBm 750mA 820mA
1
+5V
HSDPA Data transfer Band I @+23dBm 775mA 850mA
1
+5V
UMTS Data transfer Band II @+10dBm 455mA
+5V
HSDPA Data transfer Band II @+10dBm 500mA
+5V
UMTS Data transfer Band II @+23dBm 810mA 930mA
1
+5V
HSDPA Data transfer Band II @+23dBm 850mA 930mA
1
+5V
UMTS Data transfer Band V @+10dBm 390mA
+5V
HSDPA Data transfer Band V @+10dBm 420mA
+5V
UMTS Data transfer Band V @+23dBm 620mA 790mA
1
+5V
HSDPA Data transfer Band V @+23dBm 640mA 820mA
1
1
Under total mismatch conditions at antenna connector.
* Multi-Tech Systems, Inc. recommends that the customer incorporate a 10% buffer into their power source when
determining product load.