AD6122–SPECIFICATIONS (TA = +25؇C, VCC = +3.0 V, LO = 2 ؋
IF, REFIN = 1.23 V, LDO Enabled, unless otherwise
noted) NOTE: All powers shown in dBm are referred to 1 k⍀.
Specification
Conditions
Min
Typ
Max
Unit
MODULATOR
LO = 260.76 MHz (2 × IF), 100 mV p-p
500 mV p-p Differential I and Q Inputs;
Output Level Referred to a 1 kΩ Differential Load
Output Level
–21
–50
dBm
dBc
Output Third Order Harmonic
I/Q Inputs
Differential Input Voltage
Bandwidth
Resistance
Quadrature Accuracy
Amplitude Balance
Output Referred Noise
Modulator Common-Mode Reference
LO Input Resistance
LO Input Capacitance
LO Carrier Leakage
Differential
–3 dB
500
mV p-p
MHz
kΩ
20
30
1
°
0.1
–169
1.408
1.2
2.4
–40
dB
dBm/Hz
V
kΩ
pF
0.9 MHz to 5.0 MHz Offsets
Differential Input at 260.38 MHz
Differential Input at 260.38 MHz
Bias I/Q Using MODCMREF
dBc
IF AMPLIFIER
FIF = 130.38 MHz
Noise Figure
VGAIN = 2.5 V, 1 kΩ Differential Load
VGAIN = 2.5 V
VGAIN = 2.5 V
10
dB
Input 1 dB Compression Point
Input Third-Order Intercept
Gain Flatness
–32
–24
0.25
2.3
680
4.2
2.0
dBm
dBm
dB
IF 630 kHz
Input Capacitance
Shunt Equivalent Model at 130.38 MHz
Shunt Equivalent Model at 130.38 MHz
Per Pin at 130.38 MHz
pF
Differential IF Input Resistance
Differential IF Output Resistance
Differential IF Output Capacitance
Ω
kΩ
Per Pin at 130.38 MHz
pF
GAIN CONTROL INTERFACE
Gain Scaling
Gain Scaling Linearity
Minimum Gain
Using Internal Reference
For a Typical Dynamic Range of 92 dB
VGAIN = 0.5 V
VGAIN = 2.5 V
90 dB Gain Change, Min Gain to Max Gain
75
3
–63
+34
0.7
10
dB/V
dB/V
dB
dB
µs
MΩ
kΩ
Maximum Gain
Gain Control Response Time
Input Resistance at REFIN
Input Resistance at VGAIN
109
POWER-DOWN INTERFACE
Logic Threshold High
Logic Threshold Low
Input Current for Logical High
Turn-On Response Time
Turn-Off Response Time
Power-Up on Logical High
1.34
1.30
0.1
23
187
V
V
µA
µs
ns
Measure to Settling of AGC from Standby Mode
To 200 µA Supply Current
LOW DROPOUT REGULATOR
External PNP Pass Transistor, VCESAT = –0.4 V
Max, hFE = 100/300 Min/Max
Input Range
2.9–4.2
2.70
200
V
V
mV
V
Nominal Output
Dropout Voltage
Reference Output
1.23
POWER SUPPLY
Supply Range Bypassing Internal LDO
Supply Current
Standby Current
2.7–5.0
10.4
7.8
V
mA
µA
VGAIN = 1.5 V (Unity Gain)
OPERATING TEMPERATURE
TMIN to TMAX
–40
+85
°C
Specifications subject to change without notice.
REV. B
–2–