ISL3680 Datasheet, PDF (1/1 Pages) Intersil Corporation – Direct Conversion Transceiver

®
Data Sheet
March 2003
ISL3680
FN8053
Direct Conversion Transceiver
The Intersil ISL3680 is a highly
integrated UHF2 process, direct
conversion transceiver and is part of a
2.4GHz, IEEE802.11b/g compliant radio chipset. The
ISL3680 directly interfaces with Intersil’s ISL3880 Medium
Access Controller with Integrated Baseband processor. The
addition of Intersil’s ISL3980 power amplifier and ISL3090
10GHz VCO completes a WLAN transceiver application.
Pinout
ISL3680 (QFN)
TOP VIEW
LNA_VCC 17
LNA_GND ₁₈
LB
LB_SHIELD 19
LB_LNA_IN+ 20
LB_LNA_IN- 21
BB_OVLD
RX_I
RX_Q
HB_SHIELD 22
NC 23
NC 24
HB_SHIELD_2 25
LB_TX_OUT+ 26
LB_TX_OUT- 27
NC 28
LB
NC 29
TX_GND 30
TX_VCC2 31
TX_VCC1 ₃₂
10GHz
LO
I SELECT
I
I
2
2
Q
Q
RX I
TX I
V_REF
Q SELECT
TX_I
RX Q
TX Q
TX_DET
SYNTHESIZER
TX_Q
2
CP SERIAL INTER.
REF IN
64 RX_I+
63 RX_I-
62 RX_AGC_GND
61 RX_AGC_VCC
60 RX_Q+
59 RX_Q-
58 1.2V_REF
57 DATA
56 TX_I+
55 TX_I-
54 LE
53 TX_Q+
52 TX_Q-
51 ^PRE_GND
50 PRE_VDD
49 LD/RREF
Features
• Highly integrated Dual Band RF to baseband solution
• Frequency of operation . . . . . . . . . . . . . . . . 2.4 to 2.5GHz
• Low supply operation . . . . . . . . . . . . . . . . . . . . 2.7 to 3.3V
• Noise figure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.4dB
• TX OFDM Output Power . . . . . . . . . . . . . . . . . . . . .-5dBm
• TX I/Q MTPR, PAR=12 . . . . . . . . . . . . . . . . . . . . . . -45dB
• RX Voltage gain . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 74dB
• RX I/Q MTPR, PAR=12, High Gain . . . . . . . . . . . . . -35dB
• TX/RX switching speed . . . . . . . . . . . . . . . . . . . . . . .<1µS
• Direct simple interface to ISL3880
MLFP Package
• Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat No
Leads - Package Outline
• Near Chip Scale Package footprint, which improves PCB
efficiency and has a thinner profile
Applications
• PC card wireless LAN adapters
• High data rate wireless LAN systems targeting
IEEE802.11 b/g standards
• Spread spectrum Dual Band WLAN RF modems
• TDMA or CSMA packet protocol Dual Band radios
• PCI wireless LAN cards
• ISA, ISA PnP WLAN cards
Ordering Information
TEMP. RANGE
PART NUMBER
(^oC)
PACKAGE PKG.NO.
ISL3680IR
-40 to 85 64 Ld QFN L64.9x9
ISL3680IR-TK
Tape and Reel
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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