Datasheet
(Typical Application Circuit, V
AVDD
= V
DVDD
= V
DD5
= +3.0V to +3.6V, all RF inputs are referenced to 50Ω, f
RF
= 315MHz,
T
A
= -40°C to +105°C, unless otherwise noted. Typical values are at V
AVDD
= V
DVDD
= V
DD5
= +3.3V and T
A
= +25°C.) (Note 1)
Note 1: 100% tested at T
A
= +25°C. Guaranteed by design and characterization over temperature.
Note 2: IRSEL is internally set to 375MHz IR mode. It can be left open when the 375MHz image-rejection setting is desired. Bypass
to AGND with a 1nF capacitor in a noisy environment.
Note 3: BER = 2 x 10
-3
, Manchester encoded, data rate = 4kbps, IF bandwidth = 280kHz.
Note 4: Input impedance is measured at the LNAIN pin. Note that the impedance includes the 15nH inductive degeneration con-
nected from the LNA source to ground. The equivalent input circuit is 50Ω in series with 2.2pF.
Note 5: Crystal oscillator frequency for other RF carrier frequency within the 300MHz to 450MHz range is (f
RF
- 10.7MHz)/64 for
V
XTALSEL
= 0V, and (f
RF
- 10.7MHz)/32 for XTALSEL = V
DD5
.
(Typical Application Circuit, V
AVDD
= V
DVDD
= V
DD5
= +3.3V, f
RF
= 315MHz, T
A
= +25°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Maximum Load Capacitance C
LOAD
10 pF
Output High Voltage V
DD5
V
Output Low Voltage 0 V
CRYSTAL OSCILLATOR
Crystal Frequency (Note 5) f
XTAL
f
RF
= 433MHz
V
XTALSEL
= 0V 6.6128
MHz
V
XTALSEL
= VDD5 13.2256
f
RF
= 315MHz
V
XTALSEL
= 0V 4.7547
V
XTALSEL
= VDD5 9.5094
Crystal Tolerance 50 ppm
Input Capacitance From each pin to ground 6.2 pF
SUPPLY CURRENT
vs. RF FREQUENCY
MAX7033 toc02
RF FREQUENCY (MHz)
SUPPLY CURRENT (mA)
450400300 350
3.5
4.0
4.5
5.0
6.0
5.5
6.5
7.0
3.0
250 500
+105°C
+85°C
-40°C
+25°C
BIT-ERROR RATE
vs. AVERAGE CARRIER POWER
MAX7033 toc03
AVERAGE CARRIER POWER (dBm)
BIT-ERROR RATE (%)
-116-118-120-122-124-126-128
0.1
1
10
100
0.01
-130 -114
f
RF
= 433MHz
f
RF
= 315MHz
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX7033 toc01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
3.53.43.33.23.1
4.2
4.4
4.6
4.8
5.0
5.2
5.4
5.6
5.8
6.0
4.0
3.0 3.6
+85°C
+105°C
+25°C
-40°C
MAX7033 315MHz/433MHz ASK Superheterodyne
Receiver with AGC Lock
www.maximintegrated.com
Maxim Integrated
│
5
Electrical Characteristics (continued)
Typical Operating Characteristics