SL6609A
Direct Conversion FSK Data Receiver
Advance Information
DS4015 - 2.5 July 1995
This device is an advanced direct conversion receiver for
operation up to 470MHz. The design is based on the SL6609
receiver and is a pin for pin product upgrade. The device
integrates all functions to translate a binary FSK modulated
RF signal into a demodulated data stream. Adjacent channel
rejection is provided using tuneable gyrator filters. To assist
operation in the presence of large interfering signals both RF
and audio AGC functions are provided.
The device also includes a 1 volt regulator capable of
sourcing up to 5mA, a battery flag and the facility of incorporating
a more complex post detection filter off-chip. Both battery flag
and data outputs have open collector outputs to ease their
interface with other devices.
TPX
RFIADJ
LOY
GYRI
LOX
VR
TPY
GTHADJ
TCADJ
BEC
BATTFL
TPLIMY
VCC2
DATAOP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
IAGCOUT
IRFAMP
MIXA
GND
MIXB
VREG
REGCNT
VCC1
VBATT
VBG
DIGGND
BRF1
BRF2
TPLIMX
FEATURES
s
s
s
s
s
s
Very low power operation - typ 3.0mW
Single cell operation for most of the device.
Limited functional blocks operating via an inverter
Superior sensitivity of -130dBm
Operation at wide range of paging data rates
512, 1200, 2400 baud
On chip 1 volt regulator
Small package offering SSOP
NP28
Fig.1 Pin connections
ABSOLUTE MAXIMUM RATINGS
Supply voltage
Storage temperature
Operating temperature
6V
-55°C to +150°C
-20°C to +70°C
APPLICATIONS
s
s
s
s
Credit card pagers
Watch pagers
Small form factor pagers i.e. PCMCIA
Low data rate data receivers i.e. Security/remote
control
23
22
4
1
20
11
ORDERING INFORMATION
SL6609A / KG / NPDS
SL6609A / KG / NPDE
- SSOP devices in anti-static sticks
- SSOP devices in tape and reel
15
6
VR
10
BEC
21
13
18
19
VBG
GND
VR
+
-
VR
-
+
VCC1 VCC2 GND
25
MIXER
17
16
14
LIMITER
4Ø
DETECTOR
LIMITER
24
26
9
28
5
3
2
27
7
12
8
Fig.2 Block diagram of SL6609A
MITEL [ MITEL NETWORKS CORPORATION ]
