MAX7036 Maxim Integrated Products, MAX7036 Datasheet - Page 6

• Manufacturer Part Number: MAX7036
• Description: 300MHz To 450MHz ASK Receiver
• Manufacturer: Maxim Integrated Products

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300MHz to 450MHz ASK Receiver
with Internal IF Filter
( Typical Application Circuit , V
6
3.15
3.10
3.05
3.00
_______________________________________________________________________________________
PIN
10
11
12
1
2
3
4
5
6
7
8
9
0
T
V
A
DD
= +105°C
= 5V, +5V CIRCUIT
vs. REGULATOR CURRENT
5
REGULATOR VOLTAGE
REGULATOR CURRENT (mA)
T
A
= +85°C
LNAOUT
ENABLE
MIXIN2
MIXIN1
NAME
XTAL2
XTAL1
LNAIN
DVDD
AVDD
10
IFC2
IFC1
IFC3
T
A
= +25°C
15
T
AVDD
A
= -40°C
Enable Input. Internally pulled down to ground. Set V
Crystal Input 2. Connect an external crystal from XTAL2 to XTAL1. Can also be driven with an AC-
coupled external reference oscillator (see the Crystal Oscillator section).
Crystal Input 1. Connect an external crystal from XTAL2 to XTAL1. Bypass to GND if XTAL2 is driven
from an AC-coupled external reference (see the Phase-Locked Loop section).
Positive Analog Supply Voltage. Connect to DVDD. Bypass to GND with a 0.1µF capacitor as close as
possible to the device (see the Typical Application Circuit). For 5.0V operation, AVDD is internally
connected to an on-chip 3.2V LDO regulator. For 3.3V operation, connect AVDD to V
Low-Noise Amplifier Input. Must be AC-coupled (see the Low-Noise Amplifier section).
Low-Noise Amplifier Output. Must be connected to AVDD through a parallel LC tank circuit. AC-
couple to MIXIN2 (see the Low-Noise Amplifier section).
2nd Differential Mixer Input. Connect to the LNAOUT side of the LC tank filter through a 100pF
capacitor (see the Typical Application Circuit).
1st Differential Mixer Input. Connect to the AVDD side of the LC tank filter through a 100pF capacitor
(see the Typical Application Circuit).
IF Fi l ter C ap aci tor C onnecti on 2. Thi s i s for the S al l en- Key IF fi l ter . C onnect a cap aci tor fr om IFC 2 to GN D .
The val ue of the cap aci tor i s d eter m i ned b y the IF fi l ter b and w i d th ( see the Typical Application Circuit) .
IF Fi l ter C ap aci tor C onnecti on 1. Thi s i s for the S al l en- Key IF fi l ter . C onnect a cap aci tor fr om IFC 1 to IFC 3.
The val ue of the cap aci tor i s d eter m i ned b y the IF fi l ter b and w i d th ( see the Typical Application Circuit) .
IF Fi l ter C ap aci tor C onnecti on 3. Thi s i s for the S al l en- Key IF fi l ter . C onnect a cap aci tor fr om IFC 3 to IFC 1.
The val ue of the cap aci tor i s d eter m i ned b y the IF fi l ter b and w i d th ( see the Typical Application Circuit) .
Positive Digital Supply Voltage Input. Connect to AVDD. Bypass to GND with a 0.01µF capacitor as
close as possible to the device (see the Typical Application Circuit).
20
= V
DD
25
= V
DVDD
-100
-110
-120
Typical Operating Characteristics (continued)
-50
-60
-70
-80
-90
0.01
PHASE NOISE vs. OFFSET FREQUENCY
= 3.3V, f
OFFSET FREQUENCY (kHz)
RF
1
= 315MHz, T
100
f
RF
FUNCTION
A
= 315MHz
= +25°C, unless otherwise noted.)
ENABLE
10,000
= V
-100
-110
-120
-50
-60
-70
-80
-90
DD
0.01
PHASE NOISE vs. OFFSET FREQUENCY
for normal operation.
OFFSET FREQUENCY (kHz)
Pin Description
1
DD
.
100
f
RF
= 433MHz
10,000