Datasheet

MAX2900–MAX2904
200mW Single-Chip Transmitter ICs for
868MHz/915MHz ISM Bands
3
Maxim Integrated
DC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +2.7V to +4.5V, EN = OOKIN = REFEN = high, T
A
= -40°C to +85°C. Typical values are at V
CC
= +4.5V, T
A
= +25°C, unless
otherwise noted.) (Note 1)
PARAMETER CONDITIONS MIN -3σ TYP +3σ MAX UNITS
Transmit mode with output
matching optimized for
+17dBm at +3.0V: PWRSET
loaded with 36kΩ resistor
T
A
= +25°C 75
Transmit mode with output
matching optimized for
+14dBm at +3.0V: PWRSET
loaded with 51kΩ resistor
T
A
= +25°C 57
Reference-only mode: EN = low 2 3
Supply Current (continued)
PA standby mode: OOKIN = low
(MAX2902/MAX2904 only)
29 33
mA
VCO Input Tuning Pin Current VTUNE = +4.5V, T
A
= +25°C 0.02 2 µA
VREG VCO Regulator Voltage 2.0 V
D IG IT A L IN PU T /O U T PU T S ( P IN S E N , RE FE N , D 0, D 1, D 2, M O D IN , O OKIN , LD )
Input Level High
V
CC
- 0.5V
V
Input Level Low 0.5 V
Input Bias Current -10 10 µA
Output Level High
V
CC
- 0.4
V
Output Level Low 0.4 V
Output Current -100 100 µA
ANALOG CONTROL INPUTS (PINS PWRSET, RLPF, VASK)
PWRSET Voltage 1.2 V
RLPF Voltage 1.2 V
VASK Input Impedance 100 220 400 kΩ