MAX2511EEI Maxim Integrated Products, MAX2511EEI Datasheet - Page 6

• Manufacturer Part Number: MAX2511EEI
• Description: RF Transceiver IF Txr w/Limitr RSSI
• Manufacturer: Maxim Integrated Products

Low-Voltage IF Transceiver
with Limiter and RSSI
6
(MAX2511 test fixture, V
VREF through 50 resistor, TXOUT and TXOUT loaded with 100 differential, GC open, LIMOUT, LIMOUT loaded with 2k differ-
ential, TANK and TANK driven with -2.5dBm from a 100Ω source; OSCOUT AC-terminated with 50 , 100pF at RSSI pin, 0.1µF at
VREF pin, Rx inputs and Tx outputs differentially coupled, P
f
____________________________Typical Operating Characteristics (continued)
TXIN, TXIN
_______________________________________________________________________________________
70
60
50
40
30
20
10
45
40
35
30
25
0
200
2.7 3.0
DOWNCONVERTER IMAGE REJECTION
T
A
= 10.7MHz, T
= -40°C
DOWNCONVERTER INPUT 1dB
250
vs. RXIN FREQUENCY
COMPRESSION LEVEL
3.5
FREQUENCY (MHz)
T
300
A
4.0
V
= +25°C
CC
CC
A
(V)
= +25°C, unless otherwise noted.)
= +3.0V, 0.01µF across CZ and CZ, MIXOUT tied to VREF through 165 resistor, TXIN, TXIN tied to
4.5
350
T
A
TXEN = LOW
RXEN = HIGH
= +85°C
5.0
400
5.5
425
-100
-150
-200
-250
250
200
150
100
-50
40
38
36
34
32
30
28
26
50
0
-40
200
RXIN DIFFERENTIAL INPUT IMPEDANCE
RX MODE REAL
DOWNCONVERTER-MIXER IMAGE
V
RX MODE IMAGINARY
REJECTION vs. TEMPERATURE
CC
-20
RXIN, RXIN
= 5.5V
AND SUPPLY VOLTAGE
300
TEMPERATURE (°C)
0
vs. FREQUENCY
FREQUENCY (MHz)
RX OFF REAL
= -28dBm (200 system), f
20
RX OFF IMAGINARY
V
CC
40
400
= 3.0V
V
CC
60
= 2.7V
500
85
40
35
30
25
20
15
10
RXIN, RXIN
5
0
1.2
1.0
.8
.6
.4
.2
0
0
0
DOWNCONVERTER IMAGE REJECTION
0.4
10
= 425MHz, f
LIMITER OUTPUT LEVEL
0.8
vs. IF FREQUENCY
IF FREQUENCY (MHz)
vs. GC VOLTAGE
GC VOLTAGE (V)
1.2
20
T
T
A
A
= -40°C
= +25°C
1.6
LO
30
2.0
= 435.7MHz,
TXEN = LOW
RXEN = HIGH
TXEN = LOW
RXEN = HIGH
2.4
T
40
A
= +85°C
2.8
50
3.0