Datasheet
AD8325–SPECIFICATIONS
(T
A
= 25C, V
S
= 5 V, R
L
= 75 , V
IN
(differential) = 31 dBmV, V
OUT
measured through
a 1:1 transformer
1
with an insertion loss of 0.5 dB @ 10 MHz unless otherwise noted.)
Parameter Conditions Min Typ Max Unit
INPUT CHARACTERISTICS
Specified AC Voltage Output = 61 dBmV, Max Gain 31 dBmV
Noise Figure Max Gain, f = 10 MHz 13.8 dB
Input Resistance Single-Ended Input 800 W
Differential Input 1600 W
Input Capacitance 2 pF
GAIN CONTROL INTERFACE
Gain Range 58.45 59.45 60.45 dB
Maximum Gain Gain Code = 79 Dec 29.2 30.0 30.8 dB
Minimum Gain Gain Code = 0 Dec –30.25 –29.45 –28.65 dB
Gain Scaling Factor 0.7526 dB/LSB
OUTPUT CHARACTERISTICS
Bandwidth (–3 dB)
Bandwidth Roll-Off
All Gain Codes
f = 65 MHz
100
1.6
MHz
dB
Bandwidth Peaking
Output Noise Spectral Density
f = 65 MHz
Max Gain, f = 10 MHz
0
–33
dB
dBmV in
160 kHz
Min Gain, f = 10 MHz –48 dBmV in
160 kHz
Transmit Disable Mode, f = 10 MHz –68 dBmV in
160 kHz
1 dB Compression Point
Differential Output Impedance
Max Gain, f = 10 MHz
Transmit Enable and Transmit Disable Modes
18.5
75 ± 20%
dBm
W
OVERALL PERFORMANCE
Second Order Harmonic Distortion f = 21 MHz, V
OUT
= 61 dBmV @ Max Gain –70 dBc
f = 42 MHz, V
OUT
= 61 dBmV @ Max Gain –67 dBc
f = 65 MHz, V
OUT
= 61 dBmV @ Max Gain –60 dBc
Third Order Harmonic Distortion f = 21 MHz, V
OUT
= 61 dBmV @ Max Gain –57 dBc
f = 42 MHz, V
OUT
= 61 dBmV @ Max Gain –55 dBc
f = 65 MHz, V
OUT
= 61 dBmV @ Max Gain –54 dBc
Adjacent Channel Power Adjacent Channel Width = Transmit Channel –53.8 dBc
Gain Linearity Error
Width = 160 K
SYM/SEC
f = 10 MHz, Code to Code ±0.3 dB
Output Settling
Due to Gain Change (T
GS
) Min to Max Gain 60 ns
Due to Input Change Max Gain, V
IN
= 31 dBmV 30 ns
Isolation in Transmit Disable Mode Max Gain, TXEN = 0 V, f = 42 MHz, –33 dBc
V
IN
= 31 dBmV
POWER CONTROL
Transmit Enable Settling Time (T
ON
) Max Gain, V
IN
= 0 V 300 ns
Transmit Disable Settling Time (T
OFF
)Max Gain, V
IN
= 0 V 40 ns
Between Burst Transients
2
Equivalent Output = 31 dBmV 3 mV p-p
Equivalent Output = 61 dBmV 50 mV p-p
POWER SUPPLY
Operating Range 4.75 5 5.25 V
Quiescent Current Transmit Enable Mode (TXEN = 1) 123 133 140 mA
Transmit Disable Mode (TXEN = 0) 30 35 10 mA
Sleep Mode 2 4 7 mA
OPERATING TEMPERATURE
RANGE
–40 +85 ∞C
NOTES
1
TOKO 617DB-A0070 used for above specifications. MACOM ETC-1-IT-15 can be substituted.
2
Between Burst Transients measured at the output of a 42 MHz diplexer.
Specifications subject to change without notice.
–2–
REV. A