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參數(shù)資料
| 型號(hào)： | DS8005-RJX+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 20/20頁 |
| 文件大小： | 0K |
| 描述： | SMART CARD AFE DUAL 28TSSOP |
| 標(biāo)準(zhǔn)包裝： | 50 |
| 通道數(shù)： | 2 |
| 功率（瓦特）： | 700mW |
| 電壓 - 電源，數(shù)字： | 1.8V, 3V, 5V |
| 封裝/外殼： | * |
| 供應(yīng)商設(shè)備封裝： | * |
| 包裝： | * |
DS8005
Smart Card Interface
_______________________________________________________________________________________
9
DS8005
CLOCK
GENERATION
CLKDIV1
CLKDIV2
XTAL1
XTAL2
I/OA
CGND
VCCA
RSTA
CLKA
PRESA
CARD
INTERFACE B
I/OB
VCCB
RSTB
VDD
GND
CLKB
PRESB
REGULATOR
CARD
INTERFACE A
1_8V
5V/3V
VDDA
VDDA2
I/O
XCVR
RSTIN
I/OIN
CONTROL
SEQUENCER
SEL_AB
QSEL_AB
CMDVCC
INTERRUPT
GENERATION
FAULT
DETECTION
POWER
SUPPLY
OFF
OFF2
Figure 1. Functional Diagram
Detailed Description
The DS8005 is an analog front-end for communicating
with 1.8V, 3V, and 5V dual smart cards. It is a dual
input-voltage device, requiring one supply to match
that of a host microcontroller and a separate +5V sup-
ply for generating correct smart card supply voltages.
The device translates all communication lines to the
correct voltage level and provides power for smart card
operation. It is a low-power device, consuming very lit-
tle current in active-mode operation (during a smart
card communication session), and is suitable for use in
battery-powered devices such as laptops and PDAs,
consuming only 10nA in stop mode. The device is
designed for applications that do not require communi-
cation using the C4 and C8 card contacts (AUX1 and
AUX2). It is suitable for SIM/SAM interfacing, as well as
for applications where only the I/O line is used to com-
municate with a smart card.
Power Supply
The device has dual supplies. The supply pins for the
device are VDD, GND, and VDDA. VDD should be in the
2.7V to 6.0V range, and is the supply for signals that
interface with the host controller. It should, therefore, be
the same supply as used by the host controller. All
smart card contacts remain inactive during power-on or
power-off. The internal circuits are kept in the reset
state until VDD reaches VTH2 + VHYS2 and for the dura-
tion of the internal power-on reset pulse, tW. A deacti-
vation sequence is executed when VDD falls below
VTH2.
An internal regulator generates the 1.8V, 3V, or 5V card
supply voltage (VCC_). The regulator should be sup-
plied separately by VDDA. VDDA should be connected
to a minimum 4.75V supply to provide the correct sup-
ply voltage for 5V smart cards.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS8005-RJX+ | 功能描述:接口 - 專用 DUAL SMARTCARD AFE 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 |
| DS8005-RRX+ | 功能描述:接口 - 專用 Dual Smart Card AFE 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 |
| DS8007 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Multiprotocol Dual Smart Card Interface 8kV (min) ESD Protection on Card Interfaces |
| DS8007_11 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Multiprotocol Dual Smart Card Interface 8kV (min) ESD Protection on Card Interfaces |
| DS8007A | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Multiprotocol Dual Smart Card Interface |
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