MAX2306-MAX2309 datasheet(4/20 Pages) MAXIM

Part #	MAX2306-MAX2309

Description	CDMA IF VGAs and I/Q Demodulators with VCO and Synthesizer

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Manufacturer	MAXIM [Maxim Integrated Products]

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4 / 20 page

CDMA IF VGAs and I/Q Demodulators

with VCO and Synthesizer

4

_______________________________________________________________________________________

AC ELECTRICAL CHARACTERISTICS (continued)

(MAX2306/MAX2308/MAX2309 EV kit, VCC = +2.75V, registers set to default power-up states except M1 = M2 = 306, R1 = R2 = 16,

fIN = 183.7MHz, fREF = 19.2MHz, 0.6Vp-p synthesizer locked with passive 3rd-order lead-lag loop filter, SHDN = high, VGC set for

+35dB voltage gain, differential output load = 10k

Ω, all power levels referred to 50Ω, TA = +25°C, unless otherwise noted.)

Note 1:

FM_IQ and FM_I modes are not available on MAX2309.

Note 2:

Recommended operating frequency range. Contact factory for operating frequency outside this range.

Note 3:

f1 = 183.7MHz, f2 = 183.71MHz, Pf1 = Pf2 = -15dBm.

Note 4:

f1 = 183.7MHz, f2 = 183.71MHz, Pf1 = Pf2 = -50dBm.

Note 5:

Guaranteed by design.

Note 6:

Small-signal gain at 200kHz below the LO frequency will be reduced by less than 0.25dB when an interfering signal at

1.25MHz below the LO frequency is applied at the specified level.

Note 7:

f1 = 183.7MHz, f2 = 183.71MHz, Pf1 = Pf2 = -23dBm.

Note 8:

f1 = 183.7MHz, f2 = 183.71MHz, Pf1 = Pf2 = -55dBm.

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

REF Maximum Divide Ratio

R1, R2

2047

Minimum Phase Detector

Comparison Frequency

(Note 5)

20

kHz

Maximum Phase Detector

Comparison Frequency

(Note 5)

1500

kHz

1kHz offset, TA = -40°C to +85°C

-79.6

12.5kHz offset, TA = -40°C to +85°C

-94.6

30kHz offset, TA = -40°C to +85°C

-105

120kHz offset, TA = -40°C to +85°C

-115.3

Phase Noise

900kHz offset, TA = -40°C to +85°C

-125

dBc/Hz

TURBO LOCK

Acquisition, CPX = XX, TC =1

1480

2100

2650

Locked, CPX = 00

105

150

190

Locked, CPX = 01

150

210

265

Locked, CPX = 10

210

300

380

Charge-Pump Source/Sink

Current

Locked, CPX = 11

300

425

530

µA

Charge-Pump Source/Sink

Matching

Locked, all values of CPX,

0.5V < VCP < VCC - 0.5V

0.2

10

%

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