CX74037 Ver la hoja de datos (PDF) - Conexant Systems
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CX74037 Datasheet PDF : 11 Pages
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CX74037
Pin No.
43
44
45
46
47
48
Name
NC
NC
LO_PCS_IN
VCC_MIX
LO_CELL
VGA_EN
Transmit RF IC for TDMA or AMPS Applications
Table 1. CX74037 Signal Definition (2 of 2)
Description
Connect to ground.
Connect to ground.
This is the input pin for the local oscillator for the PCS band. It is internally matched.
Supply voltage for the mixer in the upconverter block and for the LO buffer.
This is the input pin for the local oscillator for the cellular band. It is internally matched.
This is a control signal input pin. When the input is low, the VGA and I/Q Modulator sections will be disabled. When the input is high,
the mentioned sections will be enabled.
Parameter
Supply voltage
Input voltage range
Power dissipation
Ambient operating temperature
Storage temperature
Table 2. Absolute Maximum Ratings
Symbol
VCC
Minimum
–0.3
–0.3
Typical
–30
–40
Maximum
+5.0
VCC
600
+80
+125
Units
V
V
mW
°C
°C
Table 3. CX74037 Recommended Operating Conditions
Parameter
Supply voltage
Logic level high
Logic level low
Supply current in 800 MHz TDMA @ 7 dBm
Supply current in 800 MHz AMPS @ 7 dBm
Supply current in 800 MHz (DRV_ENA off)
Supply current in 1900 MHz TDMA @ 8.0 dBm
Supply current in 1900 MHz TDMA (DRV_ENA off)
Supply current in sleep mode
Symbol
Minimum
2.7
1.9
Typical
3.0
75
75
45
84
48
Maximum
3.6
0.8
20
Units
V
V
V
mA
mA
mA
mA
mA
µA
4
Conexant – Proprietary
101103A
Data Subject to Change
September 27, 2000
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