Philips Semiconductors
Analog voice scrambler/descrambler
CONTENTS
1
FEATURES
2
APPLICATIONS
3
GENERAL DESCRIPTION
6
PINNING INFORMATION
6.1
Pinning
6.2
Pin description
7.1
Scrambling
7.2
Power supply (VDD, VSS)
7.3
Oscillator (OSCI)
7.4
Splitting frequency and mode selection
7.5
Serial clock input (SCL), Serial data input (SDA)
7.6
Address input (A0)
7.7
I2C-bus data configuration
7.8
Signal input (IN), Signal output (OUT)
8
I2C BUS INTERFACE
8.1
Bit transfer
8.2
Start and stop conditions
8.3
System configuration
8.4
Acknowledge
8.5
Timing specifications
9
APPLICATIONS
10
HANDLING
11
LIMITING VALUES
12
CHARACTERISTICS
14.1
Introduction
14.2
Reflow soldering
14.3
Wave soldering
14.4
Repairing soldered joints
15
DEFINITIONS+
16
LIFE SUPPORT APPLICATIONS
17
PURCHASE OF PHILIPS I2C COMPONENTS
Product specification
PCD4440T
1996 Dec 20
2