ZL70101 Medical Implantable RF Transceiver

ZL70101
Medical Implantable RF Transceiver
Short Form Data Sheet
Features
Ordering Information
402-405 MHz (10 MICS channels) and
433-434 MHz (2 ISM channels)
ZL70101LDG1A
•
High data rate (800/400/200 kbps raw data rate)
•
High performance MAC with automatic error
handling and flow control, typ < 1.5x10-10 BER.
•
Very few external components (3 pcs + antenna
matching)
•
Extremely low power consumption (5 mA,
continuous TX / RX, 1 mA low power mode)
•
Ultra low power wakeup circuit (250 nA)
•
Standards compatible (MICS, FCC, IEC)
48 pin QFN*, for base
stations** (trays, bake and
drypack)
die, implantable grade (trays
and drypack)
48 pin QFN*, for
evaluation only** (not
available in volume)
ZL70101UBJ
ZL70101LDG1 -
* Pb Free Matte Tin ** Not for implantable use
Description
The ZL70101 is a high performance half duplex RF
communications link for medical implantable
applications.
Applications
•
Implantable Devices e.g., Pacemakers, ICD’s,
Neurostimulators, Implantable Insulin Pumps,
Bladder Control Devices, implantable
physiological monitors
•
Body area network, short range device
applications using the 433 MHz ISM band.
The system is very flexible and supports several low
power wakeup options. Extremely low power is
achievable using the 2.45 GHz ISM Band Wakeupreceiver option. The high level of integration includes a
Media Access Controller, providing complete control of
the device along with coding and decoding of RF
messages. A standard SPI interface provides for easy
access by the application.
Zarlink MICS Transceiver - ZL70101
XTAL1
XTAL2
24 MHz
400 MHz Transceiver
ADC analog Inputs
(TESTIO [4:1] pins)
4
Media Access Controller
To ADC Mux
PLL
RS
Encoder
Whitening
Power Amplifier
Message
Storage
tx_data
RF 400 MHz
TX
RF_TX
CRC
Generation
Mixer
TX IF
Modulator
+
tx_clk
TX Control
Peak Detectors
5
Analog Inputs 4
MATCH1
MATCH2
5bit
ADC
3
DataBus
RSSI
Control
Mixer
Linear Amplifier
RF_RX
RF 400 MHz
RX
ADC
RX
RS
Decode
Clock
Recovery
CRC
Decode
Message
Storage
2
Test Mode Control
Regulator
1.9 - 2.0V
ULP Osc
RF 2.45 GHz
RX
Input Pin Pull-down Control
Bypass of on-chip Crystal Oscillator Control
Regulator
1.9 - 2.0V
Wake-Up Control
Select IMD or Base Transceiver
Wakeup IMD
Select one or two regulators
VSSD
VDDA
Decoupling
Capacitors
68nF
VDDIO
Battery or
Other Supply
VSUP
VSSA
2
Analog Test
TESTIO[6:5]
RX_245
SPI
Interface
Correlator
RX IF Filter and FM Detector
2.45 GHz Wake-Up Receiver
Programmable
IO
IRQ
RX
Control
rx_data
PO[4:0]
PI[2:0]
SPI_CS_B
SPI_CLK
SPI_SDI
SPI_SDO
Interface
SPI
Matching
nework
VDDD
•
December 2009
68nF
Figure 1 - ZL70101 Block Diagram
1
Zarlink Semiconductor Inc.
Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.
Copyright 2007-2009, Zarlink Semiconductor Inc. All Rights Reserved.
MODE[1:0]
PDCTR
XO_BYPASS
L
IBS
WU_EN
VREG_MODE
ZL70101
1.0
ZL70101 Functional Description
1.1
General
Short Form Data Sheet
The ZL70101 is an ultra low power, high bandwidth RF link for medical implantable applications. It operates in the
MICS (Medical Implant Communication Service) at 402-405 MHz. It uses a Reed-Solomon coding scheme together
with CRC error detection to achieve an extremely reliable link. For data-blocks, a maximum BER (Bit Error Rate) of
less than 1.5x10-10 is provided assuming a raw radio channel quality of 10-3 BER. An even higher quality of 2x10-14
BER is available using housekeeping messages, a facility fully described in the ZL70101 Design Manual.
1.2
Basic Operation and Modes
The ZL70101 transceiver is intended for operation in both an implant and base station. These systems have
different requirements especially with regard to power consumption. Therefore, the ZL70101 transceiver has
defined two fundamental startup modes of operation:
•
Implantable Medical Device (IMD) Mode
•
Base Mode
When configured as an IMD, the transceiver is usually asleep and in a very low current state. The IMD may be
woken up to initiate communications by using a 2.45 GHz link or directly by the IMD processor via the WU_EN pin.
This flexibility leads to the following options for waking up an IMD transceiver for communication.
•
IMD transceiver woken up by specially coded 2.45 GHz wakeup message using an ultra low power sniffing
method.
•
IMD transceiver woken up to sniff 400 MHz link. The ZL70101 supports such a mode of operation although
the 2.45 GHz wakeup system has lower power consumption.
•
IMD transceiver woken to send an emergency message in which case no clear channel assessment by the
Basestation is required.
•
IMD transceiver woken up by a low frequency inductive link (as typically used in pacemakers/ICDs) or some
alternative mechanism.
2
Zarlink Semiconductor Inc.
ZL70101
2.0
Short Form Data Sheet
Example Configurations
68 nF
VD D A2
To VSUP
(m ain supply)
VSSD
VSSD
VDD D
VREG_M ODE
VSSD 1
VSU P
VD DIO
R X_245A
SPI_SDI
VSSA_W AKE_LN A
ZL70101
(Bare Die)
M ATCH 1
VSSA _M ATC H
M ATCH 2
VSSA_G EN1
PO4
VSSD 7
SPI_SDO
SPI_C LK
R F_TX
VSSD 2
R F_R X
VSSD 3
SPI_C S_B
VSSA_R F_LNA
VSSD
VSSD
TESTIO4
TESTIO3
TESTIO2
TESTIO1
XTAL2
IRQ
XTAL1
VSSA_RF_XO
VSSA_GEN4
VSSA_GEN3
CLF_REF
CLF2
CLF1
VSSD
TESTIO[6]
VSSD 8
TESTIO[5]
W U_EN
NC
VSSA_RF_VCO
VSSA_GEN 2
VSSD
Application
Interface
PD C TRL*
VSSA_R F_PA
Exam ple of m atching
network for a patch
antenna . See the D esign
M anual for design
guidance .
MODE1*
MODE0*
PI2*
VSSD6
PI1*
PI0*
PO3
VSSD4
PO2
PO1
VSSD10
PO0
VSSD5
IBS*
XO_BYPASS
VSSA
VSSD9
VSSD
C 1,
note 3
VD DA (internal
regulator)
VDDA1
The ZL70101 Transceiver device is configurable as an implant transceiver or as a base station transceiver. Typical
configurations are shown in the following diagrams. Two different configurations for implants are shown, the first is
optimized for few external components and the second is optimized for highest performance.
24 M H z
Note 1: *Inputs connected via internal pull -dow n to ground . U pper side pins do not need to be bonded out
Note 2: Two supply voltages are required , VSU P (the m ain supply , 2.1-3.5V ) and VDD IO (the digital IO voltage w hich m ay be 1.5V to VSU P ).
VDD A is an on -chip derived regulated supply created by a voltage regulator connected to the VDD A 1 and VD DA 2 pads. VD DA requires a
68 nF decoupling capacitor and a connection betw een VD D D and VDD A 2. VREG _M ODE is bonded to VD D IO in this exam ple (only the VD DA
voltage regulator enabled ).
N ote 3: C 1 is an optional D C blocking capacitor .
Figure 2 - ZL70101 Transceiver Configured for an Implant - Minimum External Components
3
Zarlink Semiconductor Inc.
VDDA2
To VSUP
(main supply)
VREG_MODE
VSUP
SPI_SDI
ZL70101
(Bare Die)
MATCH1
VSSA_MATCH
MATCH2
VSSA_GEN1
PO4
VSSD7
SPI_SDO
SPI_CLK
RF_TX
VSSD2
VSSA_RF_PA
Application
Interface
PDCTRL*
RF_RX
VSSD3
VSSA_RF_LNA
SPI_CS_B
VSSD
VSSD
TESTIO4
TESTIO3
TESTIO2
TESTIO1
XTAL2
IRQ
XTAL1
VSSA_RF_XO
VSSA_GEN4
VSSA_GEN3
CLF_REF
CLF2
CLF1
TESTIO[6]
VSSD8
TESTIO[5]
WU_EN
NC
VSSA_RF_VCO
VSSA_GEN2
VSSD
68 nF
VDDIO
VSSA_WAKE_LNA
VSSD
VDDD (internal
regulator)
VSSD1
RX_245A
Example of matching
network for a patch antenna
using Match1 and Match2
tuning capacitors.
VSSD
VSSD
VDDD
VSSA
C1,
note 3
MODE1*
MODE0*
PI2*
VSSD6
PI1*
PI0*
PO3
Short Form Data Sheet
VSSD4
PO2
PO1
VSSD10
PO0
VSSD5
IBS*
68 nF
XO_BYPASS
VSSD9
VSSD
VDDA (internal
regulator)
VDDA1
ZL70101
24 MHz
Note 1: *Inputs connected via internal pull -down to ground. Upper side pins do not need to be bonded out
Note 2: Two supply voltages are required VSUP (the main supply,2.1-3.5V) and VDDIO (the digital IO voltage which may be 1.5V to VSUP)
VDDA and VDDD are both on -chip derived regulated supplies . VDDA and VDDD require two separate 68 nF decoupling capacitors .
VREG _MODE is bonded to GND in this example (both analog and digital voltage regulators enabled ).
Note 3: C1 is an optional DC blocking capacitor .
Note 4: The matching network is using the on -chip tuning capacitor arrays to GND (VSSA_MATCH) available on the Match 1 and Match2
pads.
Figure 3 - ZL70101 Transceiver Configured for an Implant - Optimal Performance
4
Zarlink Semiconductor Inc.
ZL70101
2.45 GHz Transmitter
Short Form Data Sheet
TX245
To Application Interface
(optional)
TX_MODE
68nF
To VSUP
(main supply)
MODE1*
PI2*
MODE0*
PI1*
PI0*
PO3
VSSD
PO2
PO1
PO0
IBS*
VSSA
VDDA (internal regulator)
XO_BYPASS
To VDDIO
VSSD
VDDD (internal regulator)
VDDA
VDDD
VSUP
VDDIO
68nF
VSSA
SPI_SDI
RX_245A
ZL70101
QFN48
MATCH1
VSSA_MATCH
MATCH2
PDCTRL*
VSSD
WU_EN
TESTIO4
TESTIO3
TESTIO2
TESTIO1
XTAL2
IRQ
XTAL1
VSSA_RF_LNA
VSSA_RF_XO
RF_RX
CLF_REF
Matching network
dependent on
antenna
VSSD
SPI_CS_B
CLF1
SAW
SPI_CLK
RF_TX
TESTIO[5]
LNA
VSSA_RF_PA
VSSA_RF_VCO
LPF
TESTIO[6]
Switch
SPI_SDO
TCXO
(Note1)
ADC
BPF
To Processor
RSSI
External RSSI / Note 2
Note 1: For Basestation, a TCXO is recommended (in which case XO_BYPASS is tied high)
Note 2: External RSSI Detector System is recommended. Connection to be done either to MICS chip after RSSI or direct to application
Note 3: Two supply voltages are required VSUP (the main supply,2.1-3.5V) and VDDIO (the digital IO voltage which may be 1.5V to VSUP)
VDDA and VDDD are both on -chip derived regulated supplies. VDDA and VDDD require two separate 68 nF decoupling capacitors.
VREG_MODE is bonded to GND inside the QFN package in this example (both analog and digital voltage regulators enabled ).
Figure 4 - ZL70101 Transceiver Configured for a Base Station
5
Zarlink Semiconductor Inc.
Application
Interface
ZL70101
3.0
Mechanical Characteristics
3.1
48 pin QFN Package
Short Form Data Sheet
Metal ground post
should be grounded
Figure 5 - 48 pin QFN Dimensions
6
Zarlink Semiconductor Inc.
ZL70101
4.0
Short Form Data Sheet
Electrical Characteristics
Absolute Maximum ratings - Voltages are with respect to ground (VSS) unless otherwise stated.
Parameter
Symbol
Min.
Max.
Unit
Notes
1
Supply voltage
VSUP
0
3.6
V
2
Input voltage (Digital IO)
VDDIO
0
VSUP
Vpeak rel. to VSS
3
Unpowered Storage
temperature
Tstg
-40
+125
°C
Recommended Operating Conditions - Note1
Parameter
Symbol
Min.
Typ.
Max.
Unit
4
Supply voltage
VSUP
2.1
3.5
V
5
Input voltage (Digital IO)
VDDIO
1.5
VSUP
V
6
Operating temperature
Top
0
55
°C
Notes
Note 2
Note 1:
This table lists the external conditions under which the chip shall operate according to the specifications.
Note 2:
Note that VDDIO must never be higher than VSUP even during system startup.
7
Zarlink Semiconductor Inc.
ZL70101
5.0
Additional Information
5.1
Quality
Short Form Data Sheet
Zarlink’s QA procedures are based on MIL-PRF-38535 and MIL-STD 833.
ZL70101 can be delivered either as dies (ZL70101UBJ) or in a QFN package (ZL70101LDG1A), see ordering
information on Page 1 for further details. The dies are suitable for implantable application but can also be used for
non-implantable applications and base station applications. The QFN devices are only for non-implantable
applications and base station applications.
The same chip is used for bare die and in the QFN packaged device. The QFN package and the assembly process
are not qualified for implantable applications. The QFN devices can therefore not be used in implantable
applications.
5.2
Technical Documentation
A Full Data sheet and a Design Manual are available for ZL70101. Please contact Zarlink for more information.
8
Zarlink Semiconductor Inc.
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visit our Web Site at
www.zarlink.com
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