Vega; Introduction; Functional Description - Panasonic EB-G450 Technical Manual

8

VEGA

8.1

Introduction

VEGA contains the interface circuits to the Audio, RF and auxiliary analogue functions for the Baseband circuit.
8.2

Functional Description

Figure 1: VEGA Bolck Diagram
8.2.1 Uplink I and Q
VEGA performs GMSK modulation on Data samples received form Gemini at 270Kbits per second
Timing interface
Din
270 Khz
Figure 2: Functional structure of the baseband Uplink path
MCUK971001G8
Technical Guide
http://cxema.ru
TIMING
Burst Timing
Burst
control
Register
Differential Gaussian
Encoder Filter
Power Ramp-up
Register Shaper
JTAG
10 bit
DAC
SP INTERFACE
Offset
Register
Cosine
Table
Integrator
phase(i) 16 *270 Khz
sine
Table
Offset
Register
To Power
control DAC
Section 8
8 - 1
450-0801
Low Pass
8 bit DAC
Filter
Low Pass
8 bit DAC
Filter
450-0802
VEGA
ULIP
ULIN
ULQP
ULQN
Issue 1
Revision 0