Philips PNX2000 7. Functional description

9397 750 13928 © Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data Rev. 03 – 23 August 2004 12 of 31
Philips Semiconductors PNX2000
Audio video input processor
[1] VDDI and VDDM can be connected to same 1.8 V supply voltage.
7. Functional description
7.1 Overview
Table 17 describes the functions of the hardware blocks (see also PNX2000 Block
Diagram Figure 1).
F or more detailed functional description refer to the PNX2000 User Manual.
Table 15: Digital supp ly pins
Symbol Pin Type Description
VDDE 32,49,66, 82,91,
141,143
- 3.3 V supply voltage
VSSE 28,41,59, 72,99,
142,144
- 3.3 V ground
VDDI [1] 30,35,53,67, 80,97 - 1.8 V supply voltage
VSS 29,36,43, 54,68,81,
98,139 - 1.8 V ground
VDDM [1] 44,140 - 1.8 V supply voltage for KSFRAMs and KROMs
VSSD(I2D) 1GDI
2D digital ground
VDDD(I2D) 16 SD I2D digital 1.8 V supply voltage
VSS(ADAC) 100 GD audio DAC 1.8 V digital ground
VDDD(ADAC) 101 SD audio DAC 1.8 V digital supply voltage
VDD3(DTC) 23 SD DTC 3.3 V supply voltage
VDDD(DTC) 24 SD DTC 1.8 V supply voltage
Table 16: Analog supp ly pins
Symbol Pin Type Description
VSSA(I2D) 6GA I
2D analog ground
VDDA(I2D) 11 SA I2D analog 1.8 V supply voltage
VDDA(PLL) 33 - phase locked loop 1.8 V supply voltage
VDDA(ADAC) 102 SA audio DAC 3.3 V supply voltage
VSS(DTC) 25 GA DTC analog ground
VDDA(XTAL) 3 7 OSCVDD 1.8 V crystal oscillator supply voltage
Table 17: Block function
Function Block Description
High speed data link I2D Receives data in three streams from PNX3000.
Video decoder
processor VIDDEC Decodes and processes CVBS, YUV or Y/C in YUV stream.
Serial interface I2C-bus To access all the internal registers.
Global Task Unit GTU Generates all the intern al clocks, reset and power
management.