3. TECHNICAL BRIEF
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3.5.1 Baseband Transmit Section
1. The AD6537B Baseband Transmit Section is designed to support GMSK for both single-slot and
multi-slot application.
2. The AD6535 includes a digital GMSK modulator which is used for GSM application. The GMSK
modulator uses a ROM lookup table to modulate the serial data stream ffrom the BSPORT. The
GMSK modulator is based on 3GPP TS 45.004 ver.5.1.0 Release 5
3.5.2 Baseband Receive Section
1. This section consists of two identical ADC channels that process baseband in-phase(I) and
quadrature(Q) input signals.
Figure 3-9. AD6535 BASEBAND TRANSMIT SECTION
Figure 3-10. AD6535 BASEBAND RECEIVER SECTION
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