MAX2903ETI+ Maxim Integrated Products, MAX2903ETI+ Datasheet - Page 8

• Manufacturer Part Number: MAX2903ETI+
• Description: RF Transmitter IC TX 868MHZ 200MW ansmitter ICs for 86
• Manufacturer: Maxim Integrated Products

Specifications of MAX2903ETI+

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

200mW Single-Chip Transmitter ICs for
868MHz/915MHz ISM Bands
8
MAX2900
_______________________________________________________________________________________
10
11
12
—
13
14
1
2
3
4
5
6
7
8
9
MAX2901
MAX2903
PIN
10
11
12
13
14
—
1
2
3
4
5
6
7
8
9
MAX2902
MAX2904
10
11
12
13
14
—
1
2
3
4
5
6
7
8
9
PWRSET
MODIN
VTUNE
OOKIN
REFEN
NAME
VREG
VCC1
VCC2
VCC3
VASK
RLPF
GND
D.C.
EN
LD
Resistor to Ground
Do NOT Connect —
Resi stor to Gr ound
Analog Voltage
Digital Output
Analog Input
Analog Input
Input/Output
Digital Input
Digital Input
Digital Input
Digital Input
Anal og Inp ut
Supply Pin
Supply Pin
PIN TYPE
Analog
Supply
Supply
Input
VCO tuning voltage input
Ground
Regulated voltage output to supply the VCO.
Bypass with a 0.01µF capacitor to GND as
close to the part as possible.
Power supply pin for VCO circuits. Bypass
with a 1000pF and a 10µF capacitor to GND
as close to the part as possible.
Resistor to ground on this pin sets the
modulation filter bandwidth.
Chip-enable digital input pin. Set EN low
maintain the chip in power-down mode.
Enable for crystal oscillator and frequency
reference buffer.
BPSK modulation input
On-off keying modulation. On state = high.
Power supply pin for internal RF buffer
circuits. Bypass with a 100pF and a 0.01µF
capacitor to GND as close to the part as
possible.
ASK voltage input pin
Lock detector output digital pin. Level is
high when PLL is inside lock range.
Current input set to adjust output power.
P ow er sup p l y p i n for RF p ow er am p l i fi er
ci r cui ts. Byp ass w i th a 100p F cap aci tor to GN D
as cl ose to the p ar t as p ossi b l e.
FUNCTION
Pin Description