MAX2511EEI Maxim Integrated Products, MAX2511EEI Datasheet - Page 4

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

Note 1: Guaranteed by design and characterization.
Note 2: Driving RXIN or RXIN with a power level greater than the 1dB compression level forces the input stage out of its linear
Note 3: Assuming the supply voltage has been applied, this includes settling of the limiter offset correction and the Rx or Tx bias
Note 4: LIMOUT, LIMOUT loaded with 2k differential. With no load, the output swing is approximately twice as large.
Note 5: The RSSI maximum intercept is the maximum input power (over a statistical sample of parts) at which the RSSI output is 0V.
Note 6: The RSSI relative error is the deviation from the best-fitting straight line of RSSI output voltage versus limiter input power.
Note 7: Operation outside this frequency range is possible but has not been characterized. At lower frequencies, it might be
Note 8: If a larger output level is required, a higher value of load resistance (up to 100 ) may be used.
Note 9: This assumes that the supply voltage has been applied, and includes the settling time of V
Note 10: Using two tones at 10.7MHz and 10.8MHz, 50mVp-p per tone at TXIN, TXIN. See Typical Operating Characteristics .
Low-Voltage IF Transceiver
with Limiter and RSSI
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX2511 test fixture, V
TXIN, TXIN tied to VREF through 50 resistor, TXOUT and TXOUT loaded with 100
with 2k
pin, 0.1µF at VREF pin, Rx inputs and Tx outputs differentially coupled, P
f
4
LO
TRANSMITTER (TXEN = high, V
Output Power
Image Rejection
LO Rejection
Output 1dB Compression Point
Output IM3 Level
= 435.7MHz, f
_______________________________________________________________________________________
range, causing harmonic and intermodulation distortion. The RSSI output increases monotonically with increasing input
levels beyond the mixer’s 1dB compression level.
stabilization time. Guaranteed by design.
This point is extrapolated from the linear portion of the RSSI voltage versus limiter input power. This specification and the
RSSI slope define the ideal behavior of the RSSI function (the slope and intercept of a straight line), while the RSSI relative
error specification defines the deviations from this line. See the RSSI Output Voltage vs. Limiter Input Power graph in the
Typical Operating Characteristics .
A 0dB relative error is exactly on this line. The limiter input power range for this test is -75dBm to +5dBm from 50 . See the
RSSI Relative Error graph in the Typical Operating Characteristics .
necessary to overdrive the oscillator with an external signal source.
Operating Circuit.
differential, TANK and TANK driven with -2.5dBm from a 100Ω source; OSCOUT AC-terminated with 50 , 330pF at RSSI
PARAMETER
TXIN, TXIN
CC
= 10.7MHz, T
= +3.0V, RXEN = TXEN = low, 0.01µF across CZ and CZ, MIXOUT tied to VREF through 165
TXIN
and V
A
V
V
V
V
V
0.5V < V
-40dBm < P
V
GC
GC
GC
GC
GC
GC
= +25°C, unless otherwise noted.)
TXIN
= 0.5V, T
= open, T
= 2.0V, T
= 2.0V, T
= 2.0V
= 2.0V
= 100mVp-p differential)
GC
< 1.87V
OUT
A
A
A
A
= +25°C
= +25°C
= -40°C to +85°C (Note 1)
= +25°C
< -10dBm (Note 10)
CONDITIONS
RXIN, RXIN
= -28dBm (200
differential, GC open, LIMOUT, LIMOUT loaded
MIN
-5
-6
REF
system), f
, using the Typical
TYP
-44
-19
-40
-35
34
40
-2
2
RXIN, RXIN
MAX
25
30
= 425MHz,
UNITS
resistor,
dBm
dBm
dBc
dBc
dBc