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參數(shù)資料
| 型號： | TDA8030HL |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | USB smart card reader (OTP or ROM) |
| 中文描述： | SPECIALTY MICROPROCESSOR CIRCUIT, PQFP64 |
| 封裝： | 10 X 10 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-314-2, LQFP-64 |
| 文件頁數(shù)： | 29/57頁 |
| 文件大?。?/td> | 228K |
| 代理商： | TDA8030HL |
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2003 Jul 04
29
Philips Semiconductors
Product specification
USB smart card reader (OTP or ROM)
TDA8030; TDA8031
8.2
SUPPLY
The supply to the chip is delivered by the USB-bus (pins
V
and UGND).
8.2.1
P
OWER SWITCH CONTROL
A power switch control is used in order to limit the inrush
current when plugging the reader into the bus. The main
decoupling capacitor is connected to the output of this
power switch control (pin V
DD
).
8.2.2
3.3 V
REGULATOR
The output voltage of the 3.3 V linear regulator is used for:
Powering-up the microcontroller and the ISO7816
UART
It is the reference voltage for the signalling pull-up
resistor connected to pin D+.
If this voltage is used within the application, the current
should not exceed 10 mA.
For stability reasons, a 1
μ
F low ESR decoupling capacitor
is needed between the output of the regulator (V
DDD
) and
the specific regulator ground (DGND).
For programming the EPROM of the TDA8030; TDA8031,
by applying a logic 1 to pin CPROG it will disable the
regulator, so that the microcontroller will be powered-up at
5 V.
8.2.3
DC-
TO
-DC
CONVERTER
In case of a 5 V card, the card buffers are supplied by an
inductive DC-to-DC converter.
In case of a 3 or 1.8 V card, the DC-to-DC converter is
transparent and the card buffers are then supplied directly
by V
DD
.
The external components for the DC-to-DC converter
should be an inductance of 6.8
μ
H, a low ESR capacitor of
1
μ
F and a Schottky diode (type BAT54).
The power efficiency is approximately 85% up to
I
CC
= 55 mA. The current is limited at 100 mA during the
start-up phase to avoid spurious supply drop-outs.
The DC-to-DC converter is transparent for a 3 V card.
handbook, full pagewidth
MGU887
low
up
P drive
N drive
reset
clock
VDD
Vref
VUP
LX
Fig.7 DC-to-DC converter.
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| TDA8031 | USB smart card reader (OTP or ROM) |
| TDA8031HL | USB smart card reader (OTP or ROM) |
| TDA8302 | SMALL SIGNAL COMBINATION IC FOR COLOUR TV |
| TDA8931 | Power comparator 1 X 20 W |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA8031 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:USB smart card reader (OTP or ROM) |
| TDA8031HL | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:USB smart card reader (OTP or ROM) |
| TDA8034AT | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Smart card interface |
| TDA8034AT/C1 | 制造商:NXP Semiconductors 功能描述:Cut Tape |
| TDA8034AT/C1,112 | 功能描述:接口 - 專用 SMART CARD INTERFACE RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59 |
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