DESCRIPTION
Demonstration circuit 2191A supports the
high speed, high dynamic range DAC driving the LT5579
upconverting mixer.
The circuitry on the DAC IF output is optimized for analog
frequencies from DC to 500MHz. The circuitry on the LO input
is optimized for frequencies from 1000MHz to 4300MHz.
PERFORMANCE SUMMARY
PARAMETER
Supply Voltage – DC2191
Sampling Frequency (Sample Clock Frequency)*
Sample Clock Level (Single-Ended)
LVDS Inputs
LO Input Frequency Range
*DC2191A-A Features the LTC2000-16, 16-Bit, 2.5Gsps DAC
DEMO MANUAL DC2191A
RF Transmitter Using LTC2000
16-Bit, 2.5Gsps to 2.7Gsps DAC
LTC
2000, a
The circuitry on the RF output is optimized for frequencies
®
from 2200MHz to 2600MHz.
Design files for this circuit board are available at
http://www.linear.com/demo/DC2191
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
Specifications are at T
A
CONDITIONS
This supply must provide up to 1100mA
Use a 50Ω Source
Differential Input Voltage Range
Common Mode Voltage Range
= 25°C
MIN
TYP
4.8
5.0
300
0
±0.2
0.4
750
MAX
UNITS
5.2
V
2500 or 2700
MHz
15
dBm
±0.6
V
1.8
V
4300
MHz
dc2191afa
1
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