isl3874 Intersil Corporation, isl3874 Datasheet - Page 7

• Manufacturer Part Number: isl3874
• Description: Wireless Lan Integrated Medium Access Controller With Baseband Processor With Mini-pci
• Manufacturer: Intersil Corporation

TX_AGC_IN
TX_IF_AGC
PIN NAME
TCLKIN(CS)
PIN NAME
RX_RF_AGC
RX_IF_AGC
RX_IF_DET
TXQ
TXQ
PIN NAME
PIN NAME
TXI+
TXI
XTALOUT
BBP_CLK
CLKOUT
XTALIN
PJ0
PJ1
PJ2
RXQ+
RXQ-
RXI+
RXI-
PIN NUMBER PIN I/O TYPE
PIN NUMBER
R16
R12
R14
T10
T12
T14
PIN NUMBER PIN I/O TYPE
PIN NUMBER
P5
R3
T1
L4
P16
R10
T16
J16
R7
T7
R9
T9
A2
J2
J1
I
O
O
O
O
O
7
CMOS BiDir, 2mA, 50K Pull Up
CMOS BiDir, 2mA, 50K Pull Down
CMOS BiDir, 2mA, 50K Pull Down
I/O, 50K Pull Down
O
O
I
I
I
I
I
Analog Input
CMOS Output, 2mA
CMOS, TS Output, 2mA Clock Output (Selectable as MCLK, TCLK, or TOUT0)
Input
TABLE 7. BASEBAND PROCESSOR TRANSMITTER PORT PINS
TABLE 6. BASEBAND PROCESSOR RECEIVER PORT PINS
PIN I/O TYPE
PIN I/O TYPE
TABLE 4. SERIAL EEPROM PORT CONNECTIONS
Input to the transmit power A/D converter for transmit AGC control.
Analog drive to the transmit IF power control.
TX Spread baseband I digital output data. Data is output at the chip rate. Balanced differential.
TX Spread baseband I digital output data. Data is output at the chip rate. Balanced differentia.
TX Spread baseband Q digital output data. Data is output at the chip rate. Balanced differential.
TX Spread baseband Q digital output data. Data is output at the chip rate. Balanced differential.
Analog drive to the IF AGC control.
Drive to the RF AGC stage attenuator. CMOS digital.
Analog input to the receive power A/D converter for AGC control.
Analog input to the internal 6-bit A/D of the In-phase received data. Balanced differential.
Analog input to the internal 6-bit A/D of the In-phase received data. Balanced differential.
Analog input to the internal 6-bit A/D of the Quadrature received data. Balanced differential.
Analog input to the internal 6-bit A/D of the Quadrature received data. Balanced differential.
TABLE 5. CLOCKS PORT PINS
32.768kHz Crystal Input
32.768kHz Crystal Output
Baseband Processor Clock. The nominal frequency for this clock is 44 MHz.
ISL3874
SCLK, serial clock for serial EEPROM devices
Serial Data Out (SD) used on serial EEPROM devices which require
three and four wire interfaces, example: AT45DB011
Serial Data In (MISO) used on serial EEPROM devices, Used in four wire
serial devices only. Not currently supported in software. Consult the
factory for additional updates on this option.
CS used for Chip Select Output for Serial Devices which have a 4 wire
interface like the AST45DB011 and also serial data on two wire devices
like the 24C08.
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION