Extended Type Number
defined by customer
> 600 kpcs p.a.
> 600 kpcs p.a.
> 400 kpcs p.a.
* 1) Definition of customized part number basing on orders for first year volume (300 kpcs)
2) Definition of header, ID code, checksum etc. according to customers data base
3) 8.000 US$ initial cost for metal mask
4) Lead time 5 month
5) Low volume customized application can be covered by TK5550F–PP programming.
With identical features of TK5530H–zzz–pPP possible
Pad: 150 m x 150 m (Metal: 99% Al, 1% Si)
Padwindow: 138 m x 138 m
Once the IC detects the incoming RF, the IC repetively
reads out the code data as long as the RF signal is applied.
The transition from the last bit to bit 1 of the next
sequence occurs without interruption. Data is transmitted
by alternating damping of the incoming RF via a load.
Different kinds of modulation and bitrates are optionally
Figure 3. Chip size
For internal power supply, an on-chip bridge rectifier is
used which consists of two diodes and two n-channel
transistors. A Zener diode, which protects the circuit
138 138 mm2 1st coil pad
138 138 mm2 2nd coil pad
against overvoltage on the coil inputs, and a smoothing
capacitor for the internal supply are also provided.
Incoming RF will be damped by the power consumption
Coil 2 1
8 Coil 1
of the IC itself and by an internal load, which is controlled
by the modulator. The loads are p-channel transistors
connected between VDD and the coil inputs. The layout
includes metal mask options for the load circuit:
single-side, double-side and alternate-side modulation.
One of four methods of modulation can be selected by
fuses. The timing diagram is shown in figure 5.
Pins 2 to 7 have to be open. They are
not specified for applications
13367 Logical “1” and “0” are distinguished via different
frequencies of damping. The frequency for “1” is the RF
Figure 4. Pinning SO8
divided by 10, a “0” divides by 8.
2 (5) Rev. A3, 17-Sep-98