Datasheet

AISG Integrated Transceiver
MAX9947
6 ______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
CC
= 5V, V
L
= 3.3V, TXOUT connected with 50I to RXIN, RXIN connected to 50I in series with 220nF to GND, R1 = 10kI between
BIAS and RES, R2 = ∞, pullup SYNCOUT with 1kI to V
L
, T
A
= T
MIN
to T
MAX
, unless otherwise specified.)
TRANSMITTER OUPUT SPECTRUM
vs. FREQUENCY (115.2kbps)
MAX9947 toc10
FREQUENCY (MHz)
TRANSMITTER OUTPUT (dBm)
100101
-100
-80
-60
-40
-20
0
20
-120
0.1 1000
90% DUTY CYCLE
C
F
= 470pF
TRANSMITTER OUPUT SPECTRUM
vs. FREQUENCY (115.2kbps)
MAX9947 toc11
FREQUENCY (MHz)
TRANSMITTER OUTPUT (dBm)
2015105
-100
-80
-60
-40
-20
0
20
-120
0 25
90% DUTY CYCLE
C
F
= 470pF
TRANSMITTER OUPUT IMPEDANCE
vs. FREQUENCY
MAX9947 toc12
FREQUENCY (MHz)
TRANSMITTER OUTPUT IMPEDANCE (I)
1010.1
5
10
15
20
25
0
0.01 100
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX9947 toc13
FREQUENCY (kHz)
PSRR (dB)
10,00010000.1 1 10 100
-70
-60
-50
-40
-30
-20
-10
0
-80
0.01 100,000
TXIN = V
L
RECEIVER INPUT IMPEDANCE
vs. FREQUENCY
MAX9947 toc14
FREQUENCY (kHz)
RECEIVER INTPUT IMPEDANCE (kI)
1000100101
2
4
6
8
10
12
14
16
18
20
0
0.1 10,000
RECEIVER INPUT THRESHOLD
vs. TEMPERATURE
MAX9947 toc15
TEMPERATURE (°C)
RECEIVER INPUT THRESHOLD (dBm)
603510-15
-16
-12
-8
-4
0
-20
-40 85
RXOUT = STABLE LOW
RXOUT = STABLE HIGH
DIR TO RECEIVER OUTPUT DELAY
vs. TEMPERATURE
TEMPERATURE (°C)
DIR TO RECEIVER OUTPUT DELAY (ns)
603510-15
320
340
360
380
400
300
-40 85
MAX9947 toc16