OPERATIONAL DESCRIPTION

FCC ID: NLB27058TX

Operational Description

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FCCID_740631

Dickie Spielzeug GmbH & Co. KG; Module 27058TX

Circuit Description

(With reference to Circuit Diagram and Blockdiagram)

The circuit of module 27058TX is basically divided in four parts:

1. Oszillator (carrier frequency)
2. Modulation of signal
3. RF amplifier
4. Output circuit with antenna

The Oszillator unit produces an carrier frequency of 27,145 MHz by using a
quartz crystal, which is coupled via a transistor.

The modulation is gained by an IC, beeing operated by the user trough the
switches.

Carrier and modulated signal are superposed at the base of a transistor,
which amplifies the modulated carrier.

The output circuit, being realised by capacitors and inductances matches
the RF amplifier to the antenna providing RF-power being transfered to the
antenna.

Document Created: 2006-12-12 15:39:16
Document Modified: 2006-12-12 15:39:16

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