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C-MAX

CME8000 Datasheet Preview

CME8000 Datasheet

RC Receiver IC

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Data Sheet
CME8000
RC Receiver IC
C-MAX
The RF Technology Specialist
1 Short Description
The CME8000 is a BiCMOS integrated straight through receiver with build in very high sensitivity
and a pre-decoding of the time signal transmitted from WWVB, DCF77, JJY, MSF and HBG. The
receiver is prepared for multi-mode reception by using an integrated logic. Integrated functions as
stand by mode, integrated antenna switching, integrated crystal switching and a hold mode
function offer features for universal applications.
The power down mode increases the battery lifetime significantly and makes the device ideal for all
kinds of radio controlled time pieces.
2 Features
o Low power consumption (<100µA)
o Very high sensitivity (0.4µV)
o Build in pulse decoding for different protocols
o Switchable for 3 different frequencies
o High selectivity by using crystal filter
o Power down mode
o Only a few external components necessary
o AGC hold mode
o Wide frequency range (40 ... 120 kHz)
o Low power applications (1.2 .. 5.0 V)
o Automatic protocol recognition
o Pre-decoded protocol information
o Fast data transfer to CPU (100ms)
o Use of the CPU clock (32768Hz)
o Improved noise resistance
o Integrated AGC adaptation
Two built-in low impedance antenna switches
(40 Ohm/3V)
o True Bit strength indication
Benefits
o Extended Battery operating time
o Decoding of the signal extremely simplified
o Simplified micro controller software
o Simplified multi frequency handling
o Easy world time piece design
o Automatic country recognition
o True signal quality information
Block Diagram
QIN QLOUT QMOUT QHOUT
ANT1
cryst al switch
IN1
IN2
ANT2
AGC
GND
SPEC No.
CME8000
Revision
B.11
State
11.03.05
VCC
VL PON GNDL
Bias
rect.-
AGC
TCO
Logic
contr. unit
CLKS EL
CLOCK
I/O DR
Unit
DATA
DT
BS I1
BS I2
DEM PK
Figure 1.
SS1 SS2
HLD
C-MAX printed
14.03.2005
Version
English
Page
1 of 21




C-MAX

CME8000 Datasheet Preview

CME8000 Datasheet

RC Receiver IC

No Preview Available !

Data Sheet CME8000
C-MAX
3 Ordering Information
Extended Type Number
Package
Remarks
CME8000-DDT
no die in trays
CME8000-TL*
yes SSO28
CME8000-TLQ*
Yes SSO28 Taped and reeled
*The packaged version of CME8000 is prepared for lead-free soldering. Soldering parameters are tbd.
4 Absolute Maximum Ratings
Parameters
Supply voltage
Ambient temperature range 1.2 – 2.49V
Ambient temperature range 2.5 – 5.5V
Storage temperature range
Junction temperature
Electrostatic handling (MIL Standard 883 D HMB)
Electrostatic handling (MIL MM )
Symbol
VCC
Tamb
Tamb
Rstg
Tj
+/- VESD
+/- VESD
Value
5.5
-20 to +75
-40 to +85
-55 to +150
125
4
400
Unit
V
°C
°C
°C
°C
kV
V
5 PAD Coordinates
The CME8000 is available as die for "chip-on-board" mounting and in SSO28 package.
DIE size:
2,73mm x 2,5mm
PAD size:
contact window 84µm / 84µm
Thickness: 300µm±10µm
Symbol
ANT2
IN2
IN1
ANT1
VCC
QHOUT
QMOUT
QLOUT
GND
QIN
DEM
PK
TEST
PON
HLD
GNDL
BSI 2
BSI 1
DT
Data
DR
Clock
SS2
SS1
VL
CLKSEL
Function
Antenna switch 2
Input antenna
Input antenna
Antenna switch 1
Supply voltage analog part
Crystal 3 output
Crystal 2 output
Crystal 1 output
Ground analog part
Crystal input
Capacity for peak-detector
Capacity for AGC
Test I/O
Power on
AGC hold
Ground logic part
Bit strength indicator 2
Bit strength indicator 1
Data send clock
Data output
Data ready in register
Input 1024 / 4096Hz
Transmitter select 2
Transmitter select 1
Supply voltage logic part
Clock select
x-axis (µm)
924.0
582.4
395.3
156.5
156.5
156.5
156.5
156.5
153.8
156.5
505.2
767.0
1547.2
1711.3
1959.5
2319.8
2518.1
2518.1
2517.8
2517.8
2518.1
2517.5
2332.0
1950.1
1574.9
1287.4
y-axis (µm)
2243.6
2243.6
2243.6
2101.4
1908.1
1715.3
1519.2
1322.0
1161.6
881.3
172.4
172.4
181.6
181.6
181.6
174.5
355.0
805.6
1070.3
1468.7
1919.2
2185.9
2243.7
2243.7
2241.9
2243.7
Pad # (dice)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
Pin # (SSO28*)
1
2
3
4
5
6
7
8
9
10
12
13
14
16
17
18
19
20
21
22
23
24
25
26
27
28
SPEC No.
CME8000
Revision
B.11
State
11.03.05
C-MAX printed
14.03.2005
Version
English
Page
2 of 21


Part Number CME8000
Description RC Receiver IC
Maker C-MAX
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CME8000 Datasheet PDF






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