2
dc1984af
DEMO MANUAL DC1984A
DetaileD Description
absolute maximum ratings
NOTE. Stresses beyond Absolute Maximum Ratings may
cause permanent damage to the device. Exposure to any
Absolute Maximum Rating condition for extended periods
may affect device reliability and lifetime.
Supply Voltage (V
CC
) ...............................................6.0V
Enable Voltage (EN) ........................ –0.3V to V
CC
+ 0.3V
LO Input Power (1MHz to 6GHz) ........................ +10dBm
IN Input Power (1MHz to 6GHz) ......................... +18dBm
Temp Monitor Input Current (TEMP) ......................10mA
Operating Temperature Range (T
C
) ........ –40°C to 105°C
PARAMETER
CONDITIONS
VALUE
UNITS
5V VHF/UHF Upmixer Application: f
IN
= 70MHz, f
OUT
= 100MHz to 1000MHz, f
LO
= f
IN
+ f
OUT
Conversion Gain
f
OUT
= 456MHz
1.1
dB
Two-Tone Output 3rd Order Intercept (Δf = 2MHz)
f
OUT
= 456MHz
29.0
dBm
SSB Noise Figure
f
OUT
= 456MHz
11.3
dB
SSB Noise Floor at P
IN
= 5dBm
f
IN
= 44MHz, f
LO
= 532MHz, f
OUT
= 462MHz
–152
dBm/Hz
LO-IN Leakage
f
LO
= 100MHz to 1500MHz
< –62
dBm
LO-OUT Leakage
f
LO
= 100MHz to 1500MHz
< –39
dBm
IN-OUT Isolation
f
IN
= 50MHz to 400MHz
> 43
dB
IN-LO Isolation
f
IN
= 50MHz to 400MHz
> 70
dB
Input 1dB Compression
f
OUT
= 456MHz
11.0
dBm
Note 1:
Subject to change without notice. Refer to the latest LTC5510 data sheet for the most up-to-date specifications.
performance summary
Specifications are at T
C
= 25°C, V
CC
= 5V, EN = High, P
LO
= 0dBm,
P
IN
= –10dBm (–10dBm/tone for two-tone tests), unless otherwise noted. (Note 1)
Supply Voltage Ramping
Fast ramping of the supply voltage can cause a current
glitch in the internal ESD protection circuits. Depending on
the supply inductance, this could result in a supply volt-
age transient that exceeds the maximum rating. A supply
voltage ramp time of greater than 1ms is recommended.
Do not clip powered test leads directly onto the demon-
stration circuit’s V
CC
and EN turrets.
Instead, make all
necessary connections with power supplies turned off,
then increase to operating voltage.
Supply Voltage
The LTC5510 automatically detects the supply voltage and
configures internal components for 5V or 3.3V operation.
The auto-detect circuit switches at approximately 4.1V.
To avoid undesired operation, the mixer should only be
operated in the 4.5V to 5.3V or 3.1V to 3.6V supply range.
For best overall temperature performance, the external
bias adjustment resistor, R1, should be left open for 5V
supply and set to 2kΩ for 3.3V supply. By default, dem-
onstration circuit 1984A is configured for 5V supply, and
R1 is not installed.