LMV225

更新时间： 2024-09-17 12:09:51

品牌	Logo	应用领域
德州仪器 - TI		射频
页数	文件大小	规格书
30页	947K
描述
LMV225/LMV226/LMV228 RF Power Detector for CDMA and WCDMA

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LMV225 数据手册

LMV225, LMV226, LMV228

www.ti.com

SNWS013L –AUGUST 2003–REVISED MARCH 2013

2.7 DC AND AC ELECTRICAL CHARACTERISTICS

Unless otherwise specified, all limits are specified to V_DD= 2.7V; T_J= 25°C. Boldface limits apply at temperature extremes.

(1)

Symbol

I_DD

Parameter

Supply Current

Condition

Min

Typ

Max

Units

Active Mode: RF_IN/E_N= V_DDLMV225

(DC), No RF Input Power

4.8

Present

LMV226

4.9

6.2

LMV228

6.2

Shutdown: RF_IN/E_N= GND (DC), No RF Input

Power Present

0.44

4.5

0.8

μA

V_LOW

V_HIGH

t_on

E_NLogic Low Input Level

(2)

E_NLogic High Input Level

1.8

(2)

(3)

Turn-on-Time

No RF Input Power Present, LMV225

2.1

1.2

1.7

4.5

Output Loaded with 10 pF

LMV226

μs

LMV228

(4)

t_r

Rise Time

Step from no Power to

0 dBm Applied, Output

Loaded with 10 pF

LMV225

Step from no Power to

15 dBm Applied, Output

Loaded with 10 pF

LMV226

LMV228

1.8

4.8

I_EN

P_IN

Current into RF_IN/E_NPin

μA

(5)

Input Power Range

LMV225

LMV226

LMV228

−30

dBm

−43

−13

dBV

dBm

dBV

dBm

dBV

−15

−28

−15

−28

(1) Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very

limited self-heating of the device such that T_J= T_A. No specification of parametric performance is indicated in the electrical tables under

conditions of internal self-heating where T_J> T_A.

(2) All limits are specified by design or statistical analysis

(3) Turn-on time is measured by connecting a 10 kΩ resistor to the RF_IN/E_Npin. Be aware that in the actual application on the front page,

the RC-time constant of resistor R₂and capacitor C adds an additional delay.

(4) Typical values represent the most likely parametric norm.

(5) Power in dBV = dBm + 13 when the impedance is 50Ω.

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