參數(shù)資料
型號： 935198960118
廠商： NXP SEMICONDUCTORS
元件分類： 消費家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PQCC44
封裝： PLASTIC, SOT-187, LCC-44
文件頁數(shù)： 11/18頁
文件大?。?/td> 143K
代理商： 935198960118
1997 Jun 10
2
Philips Semiconductors
Preliminary specication
PANorama-IC (PAN-IC)
SAA4995WP
FEATURES
Horizontal sample rate conversion in both zoom and
compress direction, with a sample rate conversion factor
between 0.5 and 2 (in 384 steps)
Dynamic sample rate conversion for panorama mode
display e.g. 4 : 3 material on a 16 : 9 display
Dynamic sample rate conversion for amaronap mode
display of e.g. 16 : 9 material on a 4 : 3 display
Operates with 1fh and 2fh
Programmable via microcontroller SNERT
(Synchronous No parity Eight bit Receive Transmit) bus.
GENERAL DESCRIPTION
The PAN-IC is an add-on IC to be used, for example,
between analog-to-digital conversion and a serial (field)
memory. The device performs the following tasks:
Linear horizontal sample rate conversion in both zoom
and compress direction, with a sample rate conversion
factor between 0.5 and 2
Dynamic sample rate conversion for panorama mode
display of e.g. 4 : 3 material on a 16 : 9 display
Dynamic sample rate conversion for amaronap mode
display of e.g. 16 : 9 material on a 4 : 3 display.
The PAN-IC has the ability to increase the data rate from
the ADC to a maximum of twice the data rate at the output.
To achieve this a clock rate at twice the normal output
clock rate is needed to write data to the memory.
All actions to generate a lower data rate, produces disable
cycles in Write Enable (WE).
QUICK REFERENCE DATA
ORDERING INFORMATION
SYMBOL
PARAMETER
MIN.
TYP.
MAX.
UNIT
VDD
supply voltage
4.5
5
5.5
V
IDD
supply current
110
mA
fCLK
operating clock frequency
33
MHz
Tamb
operating ambient temperature
0
70
°C
TYPE NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
SAA4995WP
PLCC44
plastic leaded chip carrier; 44 leads
SOT187-2
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