at86rf525b ATMEL Corporation, at86rf525b Datasheet - Page 9

• Manufacturer Part Number: at86rf525b
• Description: 2.5ghz Wimax Transceiver
• Manufacturer: ATMEL Corporation

Table 4. Pin Description
5189A–WiMAX–9/07
Pin
NSDE
SCL
SDI
SDO
NRES
BBTXIN
BBTXIP
BBTXQP
BBTXQN
VDDBBTX
VCMD
BBRXIN
BBRXIP
BBRXQP
BBRXQN
VSSBBRX
VDDBBRX
VDDCLK
CLK
VSSCLK
VSSXCL
XCL
VDDXCL
Pin No.
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
Description
SPI Enable Digital Input
The rising edge of SCL and a low SDE indicate the start of a data transmission to the SPI slave
SPI Clock Digital Input
At every rising edge the SDI data is latched into the internal SPI register. SDO data change also on the
rising edge.
SPI Data Digital Input
Serial SPI data input stream is started with SDE and contain first an address byte. Read in is MSB first.
The MSB of the address byte is the R/W control bit. After the address byte there follows a number of data
bytes. The actual number of data bytes depends on the address.
SPI Data Digital Output
Power On Reset
Low active, open drain output with internal 10k? pull up resistor
Base Band Transmit Input I Negative
Complementary signal to BBTXIP
Base Band Transmit Input I Positive
Base band transmit input signal In Phase
Base Band Transmit Input Q Positive
Complementary signal to BBTXQN
Base Band Transmit Input Q Negative
Base band transmit input signal Quad Phase
Voltage Supply of BB TX circuit modules
Common Mode Voltage Bias Output
RX Elements DC output voltage 1.0V, only active if PRX=High
Base Band Receive Output I Negative
In Phase output negative. The base band-processed signal is level voltage programmable to adapt to
different base band ADCs. The capacitive load should be less than 10pF asymmetric
Base Band Receive Output I Positive
Complementary signal to BBRXIN
Base Band Receive Output Q Positive
Quad Phase output positive. The base band-processed signal is level voltage programmable to adapt to
different base band ADCs. The capacitive load should be less than 10pF asymmetric.
Base Band Receive Output Q Negative
Complementary signal to BBRXQP
Voltage Supply of BB Receive circuit modules
Voltage Supply of BB Receive circuit modules
Ground Supply of CMOS Clock Output Driver
40MHz CMOS Clock Digital Output Driver
Ground Supply of CMOS Clock Output Driver
Ground Supply of Crystal Clock Input Buffer
Crystal Clock Input Buffer
Voltage Supply of Crystal Clock Input Buffer
9