Datasheet > MAX2308

MAX2308

更新时间： 2023-12-20 18:44:05

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
20页	192K
描述
CDMA IF VGA及I/Q解调器，带有VCO及合成器

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数据手册

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MAX2308 数据手册

CDMA IF VGAs a n d I/Q De m o d u la t o rs

w it h VCO a n d S yn t h e s ize r

AC ELECTRICAL CHARACTERISTICS (continued)

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

= 183.7MHz, f

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

REF

+35dB voltage gain, differential output load = 10kΩ, all power levels referred to 50Ω, T = +25°C, unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

REF Maximum Divide Ratio

R1, R2

2047

Minimum Phase Detector

Comparison Frequency

(Note 5)

kHz

Maximum Phase Detector

Comparison Frequency

1500

1kHz offset, T = -40°C to +85°C

-79.6

-94.6

-105

12.5kHz offset, T = -40°C to +85°C

Phase Noise

30kHz offset, T = -40°C to +85°C

dBc/Hz

120kHz offset, T = -40°C to +85°C

-115.3

-125

900kHz offset, T = -40°C to +85°C

TURBO LOCK

Acquisition, CPX = XX, TC =1

Locked, CPX = 00

1480

105

150

210

300

2100

150

210

300

425

2650

190

265

380

530

Charge-Pump Source/Sink

Current

Locked, CPX = 01

µA

Locked, CPX = 10

Locked, CPX = 11

Charge-Pump Source/Sink

Matching

Locked, all values of CPX,

0.2

0.5V < V < V - 0.5V

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: f = 183.7MHz, f = 183.71MHz, P = P = -15dBm.

Note 4: f = 183.7MHz, f = 183.71MHz, P = P = -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: f = 183.7MHz, f = 183.71MHz, P = P = -23dBm.

Note 8: f = 183.7MHz, f = 183.71MHz, P = P = -55dBm.

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