MAS9142(2000) Просмотр технического описания (PDF) - Micro Analog Systems Oy

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MAS9142
(Rev.:2000)

Power Amplifier Controller (PAC) and 2.8 V, 50 mA LDO Voltage Regulator

Micro Analog Systems Oy 

)81&7,216

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The PAC is an operational amplifier (OA) with AC

feedback and some RC-filtering components. PAC

also includes the biasing circuit for the dual Schottky

diodes used in RF rectifier. In the design, the

Siemens BAT62 Schottky diode package was

assumed. The DC feedback is provided by the

means of the rest of the PAC loop: the Power

Amplifier, the Directional Coupler and the

7(67 &,5&8,7

t.b.d.

DA9142.000

26 April, 2000

Power Detector (Rectifier). See also Fig 2.

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The LDOVR is a high-performance, low-dropout

voltage regulator including short circuit current and

temperature protection. The circuit also contains

necessary reference voltage and current generators,

so minimum number of external components is

required.

6 (11)

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