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參數(shù)資料
| 型號： | STPCC0166BTI3 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 外設(shè)及接口 |
| 英文描述： | MULTIFUNCTION PERIPHERAL, PBGA388 |
| 封裝： | PLASTIC, BGA-388 |
| 文件頁數(shù)： | 51/71頁 |
| 文件大小： | 1238K |
| 代理商： | STPCC0166BTI3 |
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DESIGN GUIDELINES
Issue 2.4 - November 8, 2001
55/71
6. DESIGN GUIDELINES
6.1 Typical Applications
The STPC Consumer is well suited for many appli-
cations. Some of the possible implementations
are described below.
6.1.1 Web Box
A web box is an analog set top box providing inter-
net browsing capability to a TV set. It has a TV
output for connecting to the TV set, a modem for
internet connection, a smartcard interface for the
ISP access control, and an infrared interface for
the remote control or the keyboard.
6.2 Architecture recommendations
This section describes the recommend implemen-
tations for the STPC interfaces. For more details,
download the "References Schematics" from the
STPC web site.
6.2.1 14MHz oscillator stage
The 14.31818 MHz oscillator stage can be imple-
mented using a quartz, which is the preferred and
cheaper solution, or using an external 3.3V oscil-
lator.
The crystal must be used in its series-cut funda-
mental mode and not in overtone mode. It must
have an Equivalent Series Resistance (ESR,
sometimes referred to as Rm) of less than 50
Ohms (typically 8 Ohms) and a shunt capacitance
(Co) of less than 7 pF. The balance capacitors of
16 pF must be added, one connected to each pin,
as described in Figure 6-2.
In the event of an external oscillator providing the
master clock signal to the STPC Atlas device, the
LVTTL signal should be connected to XTALO, as
described in Figure 6-2.
As this clock is the reference for all the other on-
chip generated clocks, it is strongly recommend-
ed to shield this stage, including the 2 wires go-
Figure 6-1. Web Box
STPC
TV OUTPUT
CONSUMER
SDRAM
64
FLASH
MODEM
AUDIO
16
PCI
IDE / PCI
SmartCard
R,G,B, CSYNC
S-VHS
CVBS
VIP
STV2310
SCART 1
SCART 2
microphone
Infrared
Printer port
Local Bus
ISA Bus
or
glue logic
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