MAXIM MAX2828, MAX2829 User Manual

General Description

The MAX2828/MAX2829 single-chip, RF transceiver ICs
are designed specifically for OFDM 802.11 WLAN appli­cations. The MAX2828 is designed for single-band

802.11a applications covering world-band frequencies
of 4.9GHz to 5.875GHz. The MAX2829 is designed for
dual-band 802.11a/g applications covering world-bands
of 2.4GHz to 2.5GHz and 4.9GHz to 5.875GHz. The ICs
include all circuitry required to implement the RF trans­ceiver function, providing a fully integrated receive path,
transmit path, VCO, frequency synthesizer, and base­band/control interface. Only the PA, RF switches, RF
bandpass filters (BPF), RF baluns, and a small number
of passive components are needed to form the com­plete RF front-end solution.

Each IC completely eliminates the need for external SAW
filters by implementing on-chip monolithic filters for both
the receiver and transmitter. The baseband filtering and
the Rx/Tx signal paths are optimized to meet the

802.11a/g IEEE standards and cover the full range of the
required data rates (6, 9, 12, 18, 24, 36, 48, and 54Mbps
for OFDM; 1, 2, 5.5, and 11Mbps for CCK/DSSS), at
receiver sensitivity levels up to 10dB better than 802.11a/g
standards. The MAX2828/MAX2829 transceivers are avail­able in the small 56-pin, exposed paddle thin QFN pack­age.

Applications

Single-/Dual-Band 802.11a/b/g Radios

4.9GHz Public Safety Radios

2.4GHz/5GHz MIMO and Smart Antenna Systems

Features

♦ World-Band Operation

MAX2828: 4.9GHz to 5.875GHz (802.11a)
MAX2829: 2.4GHz to 2.5GHz and 4.9GHz to

5.875GHz (802.11a/b/g)

♦ Best-In-Class Transceiver Performance

-75dBm Rx Sensitivity at 54Mbps (802.11g)

-46dB (802.11g)/-51dB (802.11a) Tx Sideband
Suppression

1.5% (802.11g) and 2% (802.11a) Tx EVM

-100dBc/Hz (802.11g)/-95dBc/Hz (802.11a)
LO Phase Noise

Programmable Baseband Lowpass Filters
Integrated PLL with 3-Wire Serial Interface
93dB (802.11g)/97dB (802.11a) Receiver Gain-

Control Range

200ns Rx I/Q DC Settling
60dB Dynamic Range Rx RSSI
30dB Tx Power-Control Range
Tx/Rx I/Q Error Detection
I/Q Analog Baseband Interface for Tx and Rx

Digital Mode Selection (Tx, Rx, Standby, and
Power Down)

Supports Both Serial and Parallel Gain Control

♦ MIMO and Smart Antenna Compatibility

Coherent LO Phase Among Multiple

Transceivers

♦ Support 40MHz Channel Bandwidth (Turbo Mode)
♦ Single +2.7V to +3.6V Supply
♦ 1µA Low-Power Shutdown Mode
♦ Small 56-Pin TQFN Package (8mm x 8mm)

MAX2828/MAX2829

Single-/Dual-Band 802.11a/b/g

World-Band Transceiver ICs

________________________________________________________________ Maxim Integrated Products 1

2

1

3

4

5

6

7

8

B6

TOP VIEW

V

CC

V

CC

B7

N.C.

N.C.

N.C.

GND

RXRFH

GND

TXRFH+

B2

GND

B4

V

CC

V

CC

VCCV

CC

B5

B3

9

TXRFH-

TXENA

PABIAS

V

CC

VCCV

CC

V

CC

TXBBI+

TXBBI-

TXBBQ+

TXBBQ-

R

BIAS

V

REF

GND

DIN

SCLK

RXENA

RXHP

RSSI

V

CC

V

CC

BYPASS

GND

GND

CPOUT

GND

ROSC

LD

B1

RXBBI+

RXBBI-

RXBBQ+

RXBBQ-

10

11

12

13

15 16 17 18 19 201421 22 23 24 25 26 27 28

29

33

32

31

34

35

36

37

38

39

40

41

42

55 54 53 52 51 50 49 48 47 46 45 44 4356

30

TUNE

CS

MAX2828

SHDN

Pin Configurations

Ordering Information

19-3455; Rev 0; 10/04

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

*EP = Exposed paddle.

EVALUATION KIT

AVAILABLE

PART

TEMP RANGE

PIN-PACKAGE

MAX2828 ETN

56 TQFN-EP* (T5688-2)

MAX2829 ETN

56 TQFN-EP* (T5688-2)

Pin Configurations continued at end of data sheet.

-40°C to +85°C

-40°C to +85°C

MAX2828/MAX2829

Single-/Dual-Band 802.11a/b/g
World-Band Transceiver ICs

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.

VCC, TXRFH_, TXRFL_ to GND..............................-0.3V to +4.2V

RXRFH, RXRFL, TXBBI_, TXBBQ_, ROSC, RXBBI_, RXBBQ_,

RSSI, PABIAS, V

REF

, CPOUT, RXENA, TXENA, SHDN, CS,

SCLK, DIN, B_, RXHP, LD, R

BIAS

,

BYPASS to GND....................................-0.3V to (V

CC

+ 0.3V)

RXBBI_, RXBBQ_, RSSI, PABIAS, V

REF

, CPOUT,

LD Short-Circuit Duration...................................................10s

RF Input Power ...............................................................+10dBm

Continuous Power Dissipation (T

A

= +70°C)

56-Pin Thin QFN (derate 31.3mW/°C above +70°C)....2500mW

Operating Temperature Range ...........................-40°C to +85°C

Junction Temperature......................................................+150°C

Storage Temperature Range .............................-65°C to +160°C

Lead Temperature (soldering, 10s) .................................+300°C

DC ELECTRICAL CHARACTERISTICS

(MAX2828/MAX2829 evaluation kits: VCC= 2.7V to 3.6V, Rx/Tx set to maximum gain, R

BIAS

= 11kΩ, no signal at RF inputs, all RF
inputs and outputs terminated into 50Ω, receiver baseband outputs are open, no signal applied to Tx I/Q BB inputs in Tx mode,
f

REFOSC

= 40MHz, registers set to default settings and corresponding test mode, TA= -40°C to +85°C, unless otherwise noted.

Typical values are at V

CC

= +2.7V and TA= +25°C, unless otherwise noted.) (Note 1)

PARAMETERS CONDITIONS

UNITS

Supply Voltage 2.7 3.6 V

1 100 µA

TA = +25°C3747

802.11g MAX2829
51

TA = +25°C4451

Standby
mode

802.11a
55

TA = +25°C

151

802.11g MAX2829

158

TA = +25°C

180

Rx mode

802.11a

188

TA = +25°C

164

802.11g MAX2829

175

TA = +25°C

184

Tx mode

802.11a

197

802.11g MAX2829 TA = +25°C65

Standby
mode
(MIMO)
(Note 2)

802.11a

TA = +25°C70

802.11g MAX2829 TA = +25°C

Rx mode
(MIMO)
(Note 2)

802.11a

TA = +25°C

802.11g MAX2829 TA = +25°C

Tx mode
(MIMO)
(Note 2)

802.11a

TA = +25°C

802.11g MAX2829

Tx calibration mode,
T

A

= +25°C

802.11g MAX2829

Supply Current

RX calibration mode,
TA = +25°C

mA

Rx I/Q Output Common-Mode
Voltage

T

A

= +25°C

0.9

V

CAUTION! ESD SENSITIVE DEVICE

Shutdown mode, reference oscillator not applied, VIL = 0

TA = -40°C to +85°C

MAX2828/MAX2829

MAX2828/MAX2829

MAX2828/MAX2829

MAX2828/MAX2829

MAX2828/MAX2829

MAX2828/MAX2829

802.11a MAX2828/MAX2829 147

802.11a MAX2828/MAX2829 210

T

TA = -40°C to +85°C

T

TA = -40°C to +85°C

T

= -40°C to +85°C

A

= -40°C to +85°C

A

= -40°C to +85°C

A

MIN TYP MAX

118

0.80

135

124

142

136

154

139

157

129

188

1.05

MAX2828/MAX2829

Single-/Dual-Band 802.11a/b/g

World-Band Transceiver ICs

_______________________________________________________________________________________ 3

AC ELECTRICAL CHARACTERISTICS—802.11g Rx Mode (MAX2829)

(MAX2829 evaluation kit: VCC= +2.7V, fIN= 2.437GHz; receiver baseband I/Q outputs at 112mV

RMS

(-19dBV), f

REFOSC

= 40MHz,

SHDN = RXENA = CS = high, RXHP = TXENA = SCLK = DIN = low, R

BIAS

= 11kΩ, registers set to default settings and correspond-

ing test mode, T

A

= +25°C, unless otherwise noted. Unmodulated single-tone RF input signal is used, unless otherwise indicated.)

(Tables 1, 2, 3)

PARAMETER CONDITIONS

MIN

TYP

MAX

UNITS

RECEIVER SECTION: LNA RF INPUT TO BASEBAND I/Q OUTPUTS

RF Input Frequency Range

GHz

-22

LNA medium-gain mode
(B7:B6 = 10)

-24

RF Input Return Loss

With 50Ω external
match

-12

dB

TA = +25°C8794

Maximum gain,
B7:B1 = 1111111

T

A

= -40°C to +85°C (Note 1) 85

Total Voltage Gain

Minimum gain,
B7:B1 = 0000000

T

A

= +25°C1

dB

From high-gain mode (B7:B6 = 11) to medium-gain
mode (B7:B6 = 10) (Note 3)

-15.5

RF Gain Steps

From high-gain mode (B7:B6 = 11) to low-gain mode
(B7:B6 = 0X) (Note 3)

-30.5

dB

Gain Variation Over RF Band fRF = 2.412GHz to 2.5GHz 3 dB

Baseband Gain Range

From maximum baseband gain (B5:B1 = 11111) to
minimum baseband gain (B5:B1 = 00000)

62 dB

DC ELECTRICAL CHARACTERISTICS (continued)

(MAX2828/MAX2829 evaluation kits: VCC= 2.7V to 3.6V, Rx/Tx set to maximum gain, R

BIAS

= 11kΩ, no signal at RF inputs, all RF
inputs and outputs terminated into 50Ω, receiver baseband outputs are open, no signal applied to Tx I/Q BB inputs in Tx mode,
f

REFOSC

= 40MHz, registers set to default settings and corresponding test mode, TA= -40°C to +85°C, unless otherwise noted.

Typical values are at V

CC

= +2.7V and TA= +25°C, unless otherwise noted.) (Note 1)

PARAMETERS CONDITIONS

MIN

TYP

MAX

UNITS

TA = -40°C (relative to +25°C) -25

Rx I/Q Output Common-Mode
Voltage Variation

T

A

= +85°C (relative to +25°C) 20

mV

Tx Baseband Input Common­Mode Voltage Operating Range

0.9 1.3 V

Tx Baseband Input Bias Current 13 µA

Reference Voltage Output -1mA < I

OUT

< +1mA 1.2 V

Digital Input-Voltage High, V

IH

VCC -

0.4

V

Digital Input-Voltage Low, V

IL

0.4 V

Digital Input-Current High, I

IH

-1 +1 µA

Digital Input-Current Low, I

IL

-1 +1 µA

LD Output-Voltage High, V

OH

Sourcing 100µA

V

CC

-

0.4

V

LD Output-Voltage Low, V

OL

Sinking 100µA 0.4 V

2.412 2.500

LNA high-gain mode (B7:B6 = 11)

LNA low-gain mode (B7:B6 = 0X)

5.5

MAX2828/MAX2829

Single-/Dual-Band 802.11a/b/g
World-Band Transceiver ICs

4 _______________________________________________________________________________________

AC ELECTRICAL CHARACTERISTICS—802.11g Rx Mode (MAX2829) (continued)

(MAX2829 evaluation kit: VCC= +2.7V, fIN= 2.437GHz; receiver baseband I/Q outputs at 112mV

RMS

(-19dBV), f

REFOSC

= 40MHz,

SHDN = RXENA = CS = high, RXHP = TXENA = SCLK = DIN = low, R

BIAS

= 11kΩ, registers set to default settings and correspond-

ing test mode, T

A

= +25°C, unless otherwise noted. Unmodulated single-tone RF input signal is used, unless otherwise indicated.)

(Tables 1, 2, 3)

PARAMETER CONDITIONS

TYP

UNITS

Voltage gain ≥ 65dB, with B7:B6 = 11 3.5

Voltage gain = 50dB, with B7:B6 = 11 4

Voltage gain = 45dB, with B7:B6 = 10 16

DSB Noise Figure

Voltage gain = 15dB, with B7:B6 = 0X 36

dB

Output P-1

dB

Voltage gain = 90dB, with B7:B6 = 11 3.2

V

P-P

Voltage gain = 60dB,
with B7:B6 = 11

-10

Voltage gain = 45dB,
with B7:B6 = 10

-2

Out-of-Band Input IP3

-35dBm jammers at
40MHz and 78MHz
offset; based on IM3
at 2MHz

Voltage gain = 40dB,
with B7:B6 = 0X

21

dBm

Voltage gain = 40dB, with B7:B6 = 11 -29

Voltage gain = 25dB, with B7:B6 = 10 -14In-Band Input P-1

dB

Voltage gain = 5dB, with B7:B6 = 0X 2

dBm

Voltage gain = 40dB,
with B7:B6 = 11

-17

Voltage gain = 25dB,
with B7:B6 = 10

-5

In-Band Input IP3

Tones at 7MHz and
8MHz, IM3 at 6MHz
and 9MHz, P

IN

=

-40dBm per tone
Voltage gain = 5dB,

with B7:B6 = 0X

14

dBm

I/Q Phase Error B7:B1 = 1101110, 1σ variation ±0.5

degrees

I/Q Gain Imbalance B7:B1 = 1101110, 1σ variation ±0.1 dB

Tx-to-Rx Conversion Gain for Rx
I/Q Calibration

B7:B1 = 0010101 (Note 4) -4 dB

I/Q Static DC Offset RXHP = 1, B7:B1 = 1101110, 1σ variation ±2mV

I/Q DC Droop

After switching RXHP to 0, D2 = 0 (see the RX
Control/RSSI Register Definition section)

±1

mV/ms

RF Gain-Change Settling Time

Gain change from high gain to medium gain, high gain to
low gain, or medium gain to low gain; gain settling to
within ±2dB of steady state

0.4 µs

Baseband VGA Settling Time

Gain change from B5:B1 = 10111 to B5:B1 = 00111;
gain settling to within ±2dB of steady state

0.1 µs

Minimum differential resistance 10 kΩ

Rx I/Q Output Load Impedance

Maximum differential capacitance 8 pF

Spurious Signal Emissions at LNA
Input

RF = 1GHz to 26.5GHz -67

dBm

MIN

MAX

MAX2828/MAX2829

Single-/Dual-Band 802.11a/b/g

World-Band Transceiver ICs

_______________________________________________________________________________________ 5

AC ELECTRICAL CHARACTERISTICS—802.11g Rx Mode (MAX2829) (continued)

(MAX2829 evaluation kit: VCC= +2.7V, fIN= 2.437GHz; receiver baseband I/Q outputs at 112mV

RMS

(-19dBV), f

REFOSC

= 40MHz,

SHDN = RXENA = CS = high, RXHP = TXENA = SCLK = DIN = low, R

BIAS

= 11kΩ, registers set to default settings and correspond-

ing test mode, T

A

= +25°C, unless otherwise noted. Unmodulated single-tone RF input signal is used, unless otherwise indicated.)

(Tables 1, 2, 3)

PARAMETER CONDITIONS

TYP

UNITS

RECEIVER BASEBAND FILTERS

Narrowband mode 7.5

Nominal mode 9.5

Turbo mode 1 14

Baseband -3dB Corner
Frequency

(See the Lowpass

Filter Register

section)

Turbo mode 2 18

MHz

f

BASEBAND

= 15MHz 20

f

BASEBAND

= 20MHz 39

Baseband Filter Rejection
(Nominal Mode)

f

BASEBAND

> 40MHz 84

dB

RSSI

RXHP = 1, low range (D11 = 0, see the Rx Control/RSSI
Register Definition section)

0.5

RSSI Minimum Output Voltage

RXHP = 1, high range (D11 = 1, see the Rx Control/RSSI
Register Definition section)

0.52

V

RXHP = 1, low range (D11 = 0, see the Rx Control/RSSI
Register Definition section)

2

RSSI Maximum Output Voltage

RXHP = 1, high range (D11 = 1, see the Rx Control/RSSI
Register Definition section)

2.5

V

RXHP = 1, low range (D11 = 0, see the Rx Control/RSSI
Register Definition section)

22.5

RSSI Slope

RXHP = 1, high range (D11 = 1, see the Rx Control/RSSI
Register Definition section)

30

mV/dB

+40dB signal step 0.2

RSSI Output Settling Time

To within 3dB of steady
state

-40dB signal step 0.7

µs

MIN

MAX

MAX2828/MAX2829

Single-/Dual-Band 802.11a/b/g
World-Band Transceiver ICs

6 _______________________________________________________________________________________

AC ELECTRICAL CHARACTERISTICS—802.11a Rx Mode (MAX2828/MAX2829)

(MAX2828/MAX2829 evaluation kits: VCC= +2.7V, fIN= 5.25GHz; receiver baseband I/Q outputs at 112mV

RMS

(-19dBV), f

REFOSC

=

40MHz, SHDN = RXENA = CS = high, RXHP = TXENA = SCLK = DIN = low, R

BIAS

= 11kΩ, registers set to default settings and cor-

responding test mode, T

A

= +25°C, unless otherwise noted. Unmodulated single-tone RF input signal is used, unless otherwise indi-

cated.) (Tables 1, 2, 3)

PARAMETER CONDITIONS

TYP

UNITS

RECEIVER SECTION: LNA RF INPUT TO BASEBAND I/Q OUTPUTS

802.11a low-band mode

RF Input Frequency Range

802.11a high-band mode

GHz

-15

LNA medium-gain mode
(B7:B6 = 10)

-11

RF Input Return Loss

With 50Ω external
match

-7

dB

TA = +25°C9197

Maximum gain,
B7:B1 = 1111111

T

A

= -40°C to +85°C (Note 1) 88

Total Voltage Gain

Minimum gain,
B7:B1 = 0000000

T

A

= +25°C03

dB

From high-gain mode (B7:B6 = 11) to medium-gain
mode (B7:B6 = 10) (Note 3)

-19

RF Gain Steps

From high-gain mode (B7:B6 = 11) to low-gain mode
(B7:B6 = 0X) (Note 3)

-34.5

dB

fRF = 4.9GHz -0.3

fRF = 5.35GHz 0.4

Gain Variation Relative to

5.25GHz
f

RF

= 5.875GHz -4

dB

Baseband Gain Range

From maximum baseband gain (B5:B1 = 11111) to
minimum baseband gain (B5:B1 = 00000)

62 dB

Voltage gain ≥ 65dB, with B7:B6 = 11 4.5

Voltage gain = 50dB, with B7:B6 = 11 4.8

Voltage gain = 45dB, with B7:B6 = 10 15

DSB Noise Figure

Voltage gain = 15dB, with B7:B6 = 0X 36

dB

Output P-1

dB

Voltage gain = 90dB, with B7:B6 = 11 3.2

V

P-P

Voltage gain = 60dB,
with B7:B6 = 11

-15

Voltage gain = 45dB,
with B7:B6 = 10

0.5

Out-of-Band Input IP3

-35dBm jammers at
40MHz and 78MHz
offset; based on IM3
at 2MHz

Voltage gain = 40dB,
with B7:B6 = 0X

20

dBm

Voltage gain = 35dB, with B7:B6 = 11 -32

Voltage gain = 20dB, with B7:B6 = 10 -12In-Band Input P-1

dB

Voltage gain = 5dB, with B7:B6 = 0X 3

dBm

LNA high-gain mode (B7:B6 = 11)

LNA low-gain mode (B7:B6 = 0X)

MIN

4.900 5.350

5.470 5.875

MAX

MAX2828/MAX2829

Single-/Dual-Band 802.11a/b/g

World-Band Transceiver ICs

_______________________________________________________________________________________ 7

AC ELECTRICAL CHARACTERISTICS—802.11a Rx Mode (MAX2828/MAX2829) (continued)

(MAX2828/MAX2829 evaluation kits: VCC= +2.7V, fIN= 5.25GHz; receiver baseband I/Q outputs at 112mV

RMS

(-19dBV), f

REFOSC

=

40MHz, SHDN = RXENA = CS = high, RXHP = TXENA = SCLK = DIN = low, R

BIAS

= 11kΩ, registers set to default settings and cor-

responding test mode, T

A

= +25°C, unless otherwise noted. Unmodulated single-tone RF input signal is used, unless otherwise indi-

cated.) (Tables 1, 2, 3)

PARAMETER CONDITIONS

TYP

UNITS

Voltage gain = 35dB,
with B7:B6 = 11

-24

Voltage gain = 20dB,
with B7:B6 = 10

-5

In-Band Input IP3

Tones at 7MHz and
8MHz, IM3 at 6MHz
and 9MHz, P

IN

=

-40dBm per tone

Voltage gain = 5dB,
with B7:B6 = 0X

13

dBm

I/Q Phase Error B7:B1 = 1101110, 1σ variation ±0.4

degrees

I/Q Gain Imbalance B7:B1 = 1101110, 1σ variation ±0.1 dB

Tx-to-Rx Conversion Gain for Rx
I/Q Calibration

B7:B1 = 0001111 (Note 4) 0 dB

I/Q Static DC Offset RXHP = 1, B7:B1 = 1101110, 1σ variation ±2mV

I/Q DC Droop

After switching RXHP to 0, D2 = 0 (see the Rx
Control/RSSI Register Definition section)

±1

mV/ms

RF Gain-Change Settling Time

Gain change from high gain to medium gain, high gain to
low gain, or medium gain to low gain; gain settling to
within ±2dB of steady state

0.4 µs

Baseband VGA Settling Time

Gain change from B5:B1 = 10111 to B5:B1 = 00111;
gain settling to within ±2dB of steady state

0.1 µs

Minimum differential resistance 10 kΩ

Rx I/Q Output Load Impedance

Maximum differential capacitance 8 pF

Spurious Signal Emissions at LNA
input

RF = 1GHz to 26.5GHz -50

dBm

RECEIVER BASEBAND FILTERS

Narrow-band mode 7.5

Nominal mode 9.5

Turbo mode 1 14

Baseband -3dB Corner
Frequency

(See the Lowpass

Filter Register
Definition section)

Turbo mode 2 18

MHz

f

BASEBAND

= 15MHz 20

f

BASEBAND

= 20MHz 39

Baseband Filter Rejection
(Nominal Mode)

f

BASEBAND

> 40MHz 80

dB

MIN

MAX

MAX2828/MAX2829

Single-/Dual-Band 802.11a/b/g
World-Band Transceiver ICs

8 _______________________________________________________________________________________

AC ELECTRICAL CHARACTERISTICS—802.11a Rx Mode (MAX2828/MAX2829) (continued)

(MAX2828/MAX2829 evaluation kits: VCC= +2.7V, fIN= 5.25GHz; receiver baseband I/Q outputs at 112mV

RMS

(-19dBV), f

REFOSC

=

40MHz, SHDN = RXENA = CS = high, RXHP = TXENA = SCLK = DIN = low, R

BIAS

= 11kΩ, registers set to default settings and cor-

responding test mode, T

A

= +25°C, unless otherwise noted. Unmodulated single-tone RF input signal is used, unless otherwise indi-

cated.) (Tables 1, 2, 3)

PARAMETER CONDITIONS

MIN

TYP

MAX

UNITS

RSSI

RXHP = 1, low range (D11 = 0, see the Rx Control/RSSI
Register Definition section)

0.5

RSSI Minimum Output Voltage

RXHP = 1, high range (D11 = 1, see the Rx Control/RSSI
Register Definition section)

0.52

V

RXHP = 1, low range (D11 = 0, see the Rx Control/RSSI
Register Definition section)

2

RSSI Maximum Output Voltage

RXHP = 1, high range (D11 = 1, see the Rx Control/RSSI
Register Definition section)

2.5

V

RXHP = 1, low range (D11 = 0, see the Rx Control/RSSI
Register Definition section)

22.5

RSSI Slope

RXHP = 1, high range (D11 = 1, see the Rx Control/RSSI
Register Definition section)

30

mV/dB

+40dB signal step 0.2

RSSI Output Settling Time

To within 3dB of steady
state

-40dB signal step 0.7

µs

AC ELECTRICAL CHARACTERISTICS—802.11g Tx Mode (MAX2829)

(MAX2829 evaluation kit: VCC= +2.7V, f

OUT

= 2.437GHz, f

REFOSC

= 40MHz, SHDN = TXENA = CS = high, RXENA = SCLK = DIN =

low, R

BIAS

= 11kΩ, 100mV

RMS

sine and cosine signal (or 100mV

RMS

, 54Mbps IEEE 802.11g I/Q signals wherever OFDM is men-

tioned) applied to baseband I/Q inputs of transmitter, registers set to default settings and corresponding test mode, T

A

= +25°C,

unless otherwise noted.) (Table 4)

PARAMETER CONDITIONS

MIN

TYP

MAX

UNITS

TRANSMIT SECTION: Tx BASEBAND I/Q INPUTS TO RF OUTPUTS

RF Output Frequency Range, f

RF

GHz

1.5% EVM

Output Power

54Mbps 802.11g OFDM
signal

B6:B1 = 111011

dBm

Output Power (CW)

V

IN

= 100mV

RMS

at 1MHz I/Q CW signal, B6:B1 =

111111

-2

dBm

Output Power Range B6:B1 = 111111 to B6:B1 = 000000 30 dB

Carrier Leakage Without DC offset cancellation

dBc

Unwanted Sideband Suppression

Uncalibrated

dBc

Tx Output ACP

Measured with 1MHz resolution bandwidth at 22MHz
offset from channel center (B6:B1 = 111011), OFDM
signal

dBm/

MHz

RF Output Return Loss With external 50Ω match

dB

2.412 2.500

-2.5

-4.5

-27

-46

-69

-14

MAX2828/MAX2829

Single-/Dual-Band 802.11a/b/g

World-Band Transceiver ICs

_______________________________________________________________________________________ 9

AC ELECTRICAL CHARACTERISTICS—802.11g Tx Mode (MAX2829) (continued)

(MAX2829 evaluation kit: VCC= +2.7V, f

OUT

= 2.437GHz, f

REFOSC

= 40MHz, SHDN = TXENA = CS = high, RXENA = SCLK = DIN =

low, R

BIAS

= 11kΩ, 100mV

RMS

sine and cosine signal (or 100mV

RMS

, 54Mbps IEEE 802.11g I/Q signals wherever OFDM is men-

tioned) applied to baseband I/Q inputs of transmitter, registers set to default settings and corresponding test mode, T

A

= +25°C,

unless otherwise noted.) (Table 4)

PARAMETER CONDITIONS

UNITS

2/3 x f

RF

4/3 x f

RF

5/3 x f

RF

RF Spurious Signal Emissions

B6:B1 = 111011, OFDM
signal

8/3 x f

RF

dBm/

MHz

Nominal mode 12

Turbo mode 1 18

Baseband -3dB Corner
Frequency

(See the Lowpass Filter

Register Definition

section)

Turbo mode 2 24

MHz

Baseband Filter Rejection

At 30MHz, in nominal mode (see the Lowpass Filter
Register Definition section)

60 dB

Minimum differential resistance 60 kΩ

Tx Baseband Input Impedance

Maximum differential capacitance 0.7 pF

TRANSMITTER LO LEAKAGE AND I/Q CALIBRATION USING LO LEAKAGE AND SIDEBAND DETECTOR (SEE THE Tx/Rx
CALIBRATION MODE SECTION)
Tx BASEBAND I/Q INPUTS TO RECEIVER OUTPUTS

Output at 1 x f

TONE

(for LO leakage

= -29dBc), f

TONE

= 2MHz,

100mV

RMS

-3

LO Leakage and Sideband­Detector Output

Calibration register,
D12:D11 = 11,
A3:A0 = 0110

Output at 2 x f

TONE

(for sideband

suppression = -40dBc), f

TONE

=

2MHz, 100mV

RMS

-13

dBV

RMS

Amplifier Gain Range D12:D11 = 00 to D12:D11 = 11, A3:A0 = 0110 26 dB

Lower -3dB Corner Frequency

1

MHz

MIN TYP MAX

-64

-61

-63

-52

MAX2828/MAX2829

Single-/Dual-Band 802.11a/b/g
World-Band Transceiver ICs

10 ______________________________________________________________________________________

AC ELECTRICAL CHARACTERISTICS—802.11a Tx Mode (MAX2828/MAX2829)

(MAX2828/MAX2829 evaluation kits: VCC= +2.7V, f

OUT

= 5.25GHz, f

REFOSC

= 40MHz, SHDN = TXENA = CS = high, RXENA = SCLK

= DIN = low, R

BIAS

= 11kΩ, 100mV

RMS

sine and cosine signal (or 100mV

RMS

, 54Mbps IEEE 802.11a I/Q signals wherever OFDM is

mentioned) applied to baseband I/Q inputs of transmitter, registers set to default settings and corresponding test mode, T

A

= +25°C,

unless otherwise noted.) (Table 4)

PARAMETER CONDITIONS

TYP

UNITS

TRANSMIT SECTION: Tx BASEBAND I/Q INPUTS TO RF OUTPUTS

802.11a low-band mode

RF Output Frequency Range, f

RF

802.11a high-band mode

GHz

2% EVM -5

Output Power

54Mbps 802.11a OFDM
signal

B6:B1 = 111100 -6.5

dBm

Output Power (CW)

V

IN

= 100mV

RMS

at 1MHz I/Q CW signal, B6:B1 =

111111

-4.5

dBm

fRF = 4.9GHz -6

fRF = 5.35GHz -0.5

Output Power Variation Relative
to 5.25GHz

f

RF

= 5.875GHz -1

dB

Output Power Range B6:B1 = 111111 to B6:B1 = 000000 30 dB

Carrier Leakage Without DC offset cancellation -27

dBc

Unwanted Sideband Suppression

Uncalibrated -51 dBc

Tx Output ACP

Measured with 1MHz resolution bandwidth at 30MHz
offset from channel center (B6:B1 = 111100), OFDM
signal

-80

dBm/

MHz

RF Output Return Loss With external 50Ω match -16 dB

4/5 x f

RF

-55

6/5 x f

RF

-64

7/5 x f

RF

-65

RF Spurious Signal Emissions

B6:B1 = 111100,
OFDM signal

8/5 x f

RF

-49

dBm/

MHz

Nominal mode 12

Turbo mode 1 18

Baseband -3dB Corner
Frequency

(see the Lowpass

Filter Register
Definition section)

Turbo mode 2 24

MHz

Baseband Filter Rejection

At 30MHz, in nominal mode (see the Lowpass Filter
Register Definition section)

60 dB

Minimum differential resistance 60 kΩ

Tx Baseband Input Impedance

Maximum differential capacitance 0.7 pF

TRANSMITTER LO LEAKAGE AND I/Q CALIBRATION USING LO LEAKAGE AND SIDEBAND DETECTOR (SEE THE Tx/Rx
CALIBRATION MODE SECTION)

Tx BASEBAND I/Q INPUTS TO RECEIVER OUTPUTS

Output at 1 x f

TONE

(for LO

leakage = -29dBc), f

TONE

=

2MHz, 100mV

RMS

-4.5

LO Leakage and Sideband­Detector Output

Calibration register,
D12:D11 = 1, A3:A0
= 0110

Output at 2 x f

TONE

(for sideband

suppression = -40dBc), f

TONE

=

2MHz, 100mV

RMS

-14.5

dBV

RMS

Amplifier Gain Range D12:D11 = 00 to D12:D11 = 11, A3:A0 = 0110 26 dB

Lower -3dB Corner Frequency 1

MHz

MIN

4.900 5.350

5.470 5.875

MAX

MAX2828/MAX2829

Single-/Dual-Band 802.11a/b/g

World-Band Transceiver ICs

______________________________________________________________________________________ 11

AC ELECTRICAL CHARACTERISTICS—Frequency Synthesis

(MAX2828/MAX2829 evaluation kits: VCC= +2.7V, fRF= 2.437GHz (802.11g) or fRF= 5.25GHz (802.11a), f

REFOSC

= 40MHz, SHDN =

CS = high, SCLK = DIN = low, PLL loop bandwidth = 150kHz, R

BIAS

= 11kΩ, TA= +25°C, unless otherwise noted.)

PARAMETER CONDITIONS

UNITS

FREQUENCY SYNTHESIZER

802.11g mode

802.11a low-band mode

RF Channel Center Frequency

802.11a high-band mode

MHz

Charge-Pump Comparison
Frequency

20

MHz

f

REFOSC

Input Frequency 20 44

MHz

Reference-Divider Ratio 14

f

REFOSC

Input Levels AC-coupled

mV

P-P

f

REFOSC

Input Impedance 10 kΩ

f

OFFSET

= 1kHz -87

f

OFFSET

= 10kHz

f

OFFSET

= 100kHz -99

f

OFFSET

= 1MHz

802.11g

f

OFFSET

= 10MHz

f

OFFSET

= 1kHz -84

f

OFFSET

= 10kHz -95

f

OFFSET

= 100kHz -92

f

OFFSET

= 1MHz

Closed-Loop Phase Noise

802.11a

f

OFFSET

= 10MHz

dBc/Hz

802.11g 0.6

Closed-Loop Integrated Phase
Noise

RMS phase jitter,
integrate from 10kHz
to 10MHz offset

802.11a 1

d eg r ees

Charge-Pump Output Current 4mA

Charge-Pump Output Voltage >70% of I

CP

0.5

V

802.11g -65

Reference Spurs 20MHz offset

802.11a -58

dBc

VOLTAGE-CONTROLLED OSCILLATOR

VCO Tuning Voltage Range 0.4 2.3 V

V

TUNE

= 0.4V

802.11g
V

TUNE

= 2.3V 62

V

TUNE

= 0.3V

V

TUNE

= 2.2V

V

TUNE

= 0.3V

LO Tuning Gain

V

TUNE

= 2.2V

MHz/V

802.11a

Low band

High band

MIN TYP MAX

2412 2500

4900 5350

5470 5875

800

-103

-112

-125

-108

-124

VCC - 0.5V

135

324

167

330

175

MAX2828/MAX2829

Single-/Dual-Band 802.11a/b/g
World-Band Transceiver ICs

12 ______________________________________________________________________________________

AC ELECTRICAL CHARACTERISTICS—Miscellaneous Blocks

(MAX2828/MAX2829 evaluation kits: VCC= +2.7V, fRF= 2.437GHz (802.11g) or fRF= 5.25GHz (802.11a), f

REFOSC

= 40MHz, SHDN =

CS = high, SCLK = DIN = low, R

BIAS

= 11kΩ, TA= +25°C, unless otherwise noted.)

PARAMETER CONDITIONS

UNITS

PA BIAS DAC

Number of Programmable Bits 6 Bits

Minimum Output Sink Current

D5:D0 = 000000 (see the PA Bias DAC Register
Definition section)

0µA

Maximum Output Sink Current

D5:D0 = 111111 (see the PA Bias DAC Register
Definition section), output voltage = 0.8V

313 µA

Turn-On Time

D9:D6 = 0000 (see the PA Bias DAC Register Definition
section)

0.2 µs

DNL 1 LSB

ON-CHIP TEMPERATURE SENSOR

TA = -40°C 0.5

TA = +25°C

Output Voltage

D11 = 1 (see the Rx

Control/RSSI
Register Definition

section)

T

A

= +85°C 1.6

V

AC ELECTRICAL CHARACTERISTICS—Timing

(MAX2828/MAX2829 evaluation kits: VCC= 2.7V, fRF= 2.437GHz (802.11g) or fRF= 5.25GHz (802.11a), f

REFOSC

= 40MHz, SHDN =

CS = high, SCLK = DIN = low, PLL loop bandwidth = 150kHz, R

BIAS

= 11kΩ, TA= +25°C, unless otherwise noted.)

PARAMETER CONDITIONS

MIN

TYP

MAX

UNITS

SYSTEM TIMING (See Figure 1)

Turn-On Time From SHDN rising edge (PLL locked) 50 µs

Shutdown Time 2µs

fRF = 2.412GHz to 2.5GHz 25

fRF = 5.15GHz to 5.35GHz 35

fRF = 5.45GHz to 5.875GHz

Channel Switching Time

f

RF

= 4.9GHz to 5.875GHz

µs

Rx to Tx 1

Rx/Tx Turnaround Time

Measured from Tx or Rx enable
rising edge; signal settling to
within ±2dB of steady state

Tx to Rx, RXHP = 1

µs

Tx Turn-On Time (From Standby
Mode)

From Tx enable rising edge; signal settling to within ±2dB
of steady state

1µs

Rx Turn-On Time (From Standby
Mode)

From Rx enable rising edge; signal settling to within
±2dB of steady state

µs

MIN TYP MAX

1.05

130

130

1.2

1.2