INTERSIL ISL3680IR-TK

ISL3680
®
Data Sheet
March 2003
FN8053
Direct Conversion Transceiver
Features
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.
• Highly integrated Dual Band RF to baseband solution
Pinout
• RX Voltage gain . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 74dB
I_OFFSET-
BB_GND/RREF
BB_AGC+
BB_AGC-
BB_OVLD
4
3
2
1
I_OFFSET+
6
5
Q_OFFSET-
BB_GND/RREF_2
7
Q_OFFSET+
8
9
10 MIXER_GND_2
11 MIXER_GND
12 MIXER_VCC
13 PE2
15 NC
14 PE1
16 LNA_H/L
LB
62 RX_AGC_GND
BB_OVLD
61 RX_AGC_VCC
RX_Q
LB_LNA_IN- 21
60 RX_Q+
59 RX_Q-
RX I
I SELECT
NC 24
10GHz
LO
HB_SHIELD_2 25
I
2
Q
VREF
TX I
56 TX_I+
LB_TX_OUT+ 26
55 TX_IQ SELECT
RX Q
53 TX_Q+
TX_I
LB
52 TX_QSYNTHESIZER
TX_GND 30
51 PRE_GND
TX_Q
TX_VCC2 31
50 PRE_VDD
2
CP
32
40
41
42
43
44
45
46
47
48
SYNTH_VDD
39
SYNTH_GND
38
CP_GND
37
CP_DO
QLO_GND
CP_VDD
QLO_VCC
CLK
TX_BB_GND
REF_IN
TX_BB_VCC
QLO_GND_2
36
• 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
49 LD/RREF
LO_IN-
35
SERIAL INTER.
REF IN
LO_IN+
TX_AGC
TX_DET
34
TX_DET
33
TX_VCC1
• Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat No
Leads - Package Outline
54 LE
TX Q
NC 28
NC 29
58 1.2V_REF
57 DATA
I
2
Q
LB_TX_OUT- 27
• TX I/Q MTPR, PAR=12 . . . . . . . . . . . . . . . . . . . . . . -45dB
MLFP Package
63 RX_I-
RX_I
LB_SHIELD 19
NC 23
• TX OFDM Output Power . . . . . . . . . . . . . . . . . . . . .-5dBm
• Direct simple interface to ISL3880
64 RX_I+
HB_SHIELD 22
• Noise figure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.4dB
• TX/RX switching speed . . . . . . . . . . . . . . . . . . . . . . .<1µS
LNA_VCC 17
LB_LNA_IN+ 20
• Low supply operation . . . . . . . . . . . . . . . . . . . . 2.7 to 3.3V
• RX I/Q MTPR, PAR=12, High Gain . . . . . . . . . . . . . -35dB
ISL3680 (QFN)
TOP VIEW
LNA_GND 18
• Frequency of operation . . . . . . . . . . . . . . . . 2.4 to 2.5GHz
• ISA, ISA PnP WLAN cards
Ordering Information
PART NUMBER
ISL3680IR
ISL3680IR-TK
1
TEMP. RANGE
(oC)
-40 to 85
PACKAGE
64 Ld QFN
PKG.NO.
L64.9x9
Tape and Reel
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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