TDA8035HN/C1,157 NXP Semiconductors, TDA8035HN/C1,157 Datasheet - Page 8

• Manufacturer Part Number: TDA8035HN/C1,157
• Description: Interface - Specialized SMART CARD INTERFACE
• Manufacturer: NXP Semiconductors

Specifications of TDA8035HN/C1,157

• Rohs: yes
• Factory Pack Quantity: 2450

NXP Semiconductors
TDA8035HN
Product data sheet
COMPANY PUBLIC
8.2 Voltage supervisor
The voltage supervisor is used as a power-on reset, and also as supply drop detection
during a card session. The threshold of the voltage supervisor is set internally in the IC for
V
pin. As long as V
the levels on the command lines are. The inactivity lasts for the duration of t
has reached a level higher than V
V
TDA8035. The reset pulse of approximately 5.7 ms (t
internally for maintaining the IC in an inactive mode during the supply voltage power-on
(see
Fig 3.
DDP
DD(INTF)
•
•
•
V
V
V
Figure 4
and V
REG
DD(INTF)
DDP
supervisors are combined and sent to a digital controller in order to reset the
Block voltage supervisor
falls below V
falls below V
REG
falls below V
and
. The threshold can be adjusted externally for V
All information provided in this document is subject to legal disclaimers.
REG
V
Figure
DD(INTF)
V
is less than V
V
Rev. 2.1 — 3 December 2012
REG
DDP
Poradj
th(VDDP)
th(VREG)
5). A deactivation sequence is performed when:
th(PORADJ)
Deep_shutdown
th(VREG)
th(VREG)
+ V
+ V
hys(VREG)
hys(VREG)
vbg
vbg
vbg
w
. The outputs of the V
, the IC remains inactive whatever
= 2048  1/(f
V
DD(INTF)
REG
TDA8035HN
001aan747
Smart card interface
osc(int)_Low
using the PORADJ
© NXP B.V. 2012. All rights reserved.
DDP,
w
) is used
after V
V
REG
8 of 31
REG
and