AMMP-6430-TR2G

更新时间： 2024-02-15 14:37:03

品牌	Logo	应用领域
安华高科 - AVAGO		放大器功率放大器
页数	文件大小	规格书
11页	900K
描述
27-32 GHz 0.5W Power Amplifier in SMT Package

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AMMP-6430-TR2G 数据手册

AMMP-6430 Application and Usage

Recommended quiescent DC bias condition for optimum

power and linearity performances is Vd=5 volts with Vg

(-1.1V) set for Id=650 mA. Minor improvements in per-

formance are possible depending on the application.

The drain bias voltage range is 3 to 5V. A single DC gate

supply connected to Vg will bias all gain stages. Muting

can be accomplished by setting Vg to the pinch-oﬀ

voltage Vp.

emerging from the RF output port. The detected voltage

is given by :

(

)

V = V_ref−V_det−V_ofs

where V is the voltage at the DET_R port, V is a

ref

det

voltage at the DET_0 port, V and is the zero-input-

ofs

power oﬀset voltage.

A simpliﬁed schematic for the AMMP6430 MMIC die

is shown in Figure 12. The MMIC die contains ESD and

over voltage protection diodes for Vg, and Vd terminals.

The package diagram for the recommended assembly

is shown in Figure 13. In ﬁnalized package form, ESD

diodes protect all possible ESD or over voltage damages

between Vgg and ground, Vgg and Vdd, Vdd and ground.

Typical ESD diode current versus diode voltage for 11-

connected diodes in series is shown in Figure 14. Under

the recommended DC quiescent biasing condition at

Vds=5V, Ids=650mA, Vgg=-1V, typical gate terminal

current is approximately 0.3mA. If an active biasing

technique is selected for the AMMP6430 MMIC PA DC

biasing, the active biasing circuit must have more than

10-times higher internal current that the gate terminal

current.

There are three methods to calculate V

ofs

1. V

can be measured before each detector

ofs

measurement (by removing or switching oﬀ the

power source and measuring V - V ). This method

ref

det

gives an error due to temperature drift of less than

0.01dB/50°C.

2. V

can be measured at

single reference

ofs

temperature. The drift error will be less than 0.25dB.

3. V can either be characterized over temperature and

ofs

stored in a lookup table, or it can be measured at two

temperatures and a linear ﬁt used to calculate V at

any temperature. This method gives an error close to

the method #1.

ofs

The RF ports are AC coupled at the RF input to the ﬁrst

stage and the RF output of the ﬁnal stage. No ground

wired are needed since ground connections are made

with plated through-holes to the backside of the device.

An optional output power detector network is also

provided. The diﬀerential voltage between the Det-Ref

and Det-Out pads can be correlated with the RF power

DET_R

V_d

V_g

DET_O

RF_out

RF_in

Three stage 0.5W power amplifier

Figure 12. Simpliﬁed schematic for the MMIC die

1...3 4 567 8 9...11

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