MAX2850ITK+T Maxim Integrated Products, MAX2850ITK+T Datasheet - Page 19

• Manufacturer Part Number: MAX2850ITK+T
• Description: RF Transmitter 5GHz, 4-Ch MIMO Tran smitter WLAN 802.11a
• Manufacturer: Maxim Integrated Products

Specifications of MAX2850ITK+T

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

PIN
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
GND_VCO
XTAL_CAP
V
V
PA_BIAS4
TXBBQ4+
BYP_VCO
TXBBQ3+
V
PA_DET4
V
TXBBQ4-
TXBBQ3-
V
V
V
TXBBI4+
TXBBI3+
RXBBQ+
CPOUT+
CLKOUT
V
ENABLE
TXBBI4-
TXBBI3-
RXBBQ-
CPOUT-
TXRF4+
RXBBI+
CC_UCX3
CC_UCX4
TXRF4-
RXRF+
RXBBI-
CC_XTAL
CC_MXR
CC_VCO
NAME
CC_LNA
RXRF-
CC_BB2
DOUT
SCLK
CC_DIG
XTAL
GND
GND
RSSI
DIN
CS
______________________________________________________________________________________
Ground
Transmitter 3 Upconverter Supply Voltage. Bypass with a capacitor as close as possible to the pin.
Transmitter 4 Upconverter Supply Voltage. Bypass with a capacitor as close as possible to the pin.
Ground
External Power-Amplifier Voltage Bias Output 4
Transmitter 4 Differential Output. These pins are in open-collector configuration. These pins should
be biased at the supply voltage with differential impedance terminated at 300I.
External Power-Amplifier Detector Mux Input 4
Receiver LNA Supply Voltage. Bypass with a capacitor as close as possible to the pin.
Receiver LNA Differential Input. Input is DC-coupled and biased internally at 1.2V.
Receiver Downconverter Supply Voltage. Bypass with a capacitor as close as possible to the pin.
Receiver Baseband Supply Voltage 2. Bypass with a capacitor as close as possible to the pin.
Transmitter 4 Baseband I-Channel Differential Input
Transmitter 4 Baseband Q-Channel Differential Input
Chip-Select Logic Input of 4-Wire Serial Interface
Serial-Clock Logic Input of 4-Wire Serial Interface
Data Logic Input of 4-Wire Serial Interface
Transmitter 3 Baseband I-Channel Differential Input
Transmitter 3 Baseband Q-Channel Differential Input
Receiver Baseband I-Channel Differential Output
Receiver Baseband Q-Channel Differential Output
Receiver Signal-Strength Indicator Output
VCO Supply Voltage. Bypass with a capacitor as close as possible to the pin.
On-Chip VCO Regulator Output Bypass. Bypass with an external 1FF capacitor to GND_VCO with
minimum PCB trace. Do not connect other circuitry to this pin.
VCO Ground
Differential Charge-Pump Output. Connect the frequency synthesizer’s loop filter between CPOUT+
and CPOUT- (see the Typical Operating Circuit).
Digital Block Supply Voltage. Bypass with a capacitor as close as possible to the pin.
Data Logic Output of 4-Wire Serial Interface
Reference Clock Buffer Output
Crystal Oscillator Supply Voltage. Bypass with a capacitor as close as possible to the pin.
Crystal Oscillator Base Input. AC-couple crystal unit to this pin.
Crystal Oscillator Emitter Node
Enable Logic Input
5GHz, 4-Channel MIMO Transmitter
FUNCTION
Pin Description (continued)
19