SL6609A View Datasheet(PDF) - Zarlink Semiconductor Inc
Part Name
Description
Manufacturer
SL6609A Datasheet PDF : 20 Pages
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SL6609A
COMPONENTS LIST FOR APPLICATION BOARD At 470MHz, 25kHz Channel Spacing.
(LO circuit is 50Ω network as in Fig.5 - crystal oscillator not specified)
Resistors
R1
open circuit
R2
open circuit
R3
100
R4
100k
R5
100
R6
100
R7
100
R8
open circuit
R9
220k
R10
1M
R11
100k (2)
R12
300 (3)
R13
3k9 (1)
R14
4k7
R15
4k7
R16
33k
R17
open circuit (4)
R18
0R (4)
R22
open circuit
Capacitors
C1
1n
C2
3.3pF
C3
1n
C4
1n
C5
3.9pF
C6
2u2
C7
1n
C8
100n
C9
1n (2)
C10
2u2
C11
100n
C12
1n
C13
1n
Notes
1. The values of R13 is determined by the set-up proce-
dure. See Application Note.
2. The value of "C9" is determined by the output data rate.
Use 2nF for 512bps, 1nF for 1200bps and 470pF for
2400bps.
3. R12 & Q4 form a dummy load for the regulator.
Permitted load currents for the regulator are 250µA to
5mA. The 1V regulator (output Pin 23) can be switched
off by connecting Pin 23 directly to VCC2. Q1, Q4, R12
and C12 must then be omitted
4. L2 is used in the Audio AGC circuit (see Fig.6). For the
characteristics of the Audio AGC current source see
figure 7. If the Audio AGC is not required then the
current source (Pin 28) may be disabled by connecting
C14
1n
C15
1n
C16
1n
C17
1n
C18
1n
C19
not used
C20
1n
C21
1n
C22
not used
C23
not used
C24
1n
C25
1n
C26
open circuit
C27
not used
C28
not used
C29
100p
C30
2u2
C31
2u2
C34
1p5
VC1
1-3pF
Inductors
L1
47nH (5)
L2
not used (3)
T1
16nH 2 Turn 1:1 (Coilcraft) Q4123-A
Active Components
Q1
Zetex FMMT589
Q2
Philips BFT25A
Q3
Not Used
Q4
Philips BFT25A(3)
Q5
Philips BFT25A
D1
Panasonic MA862(6)
Pin 9 (TCADJ) to VR (Pin 6) and by connecting Pin 28
(IAGCOUT) to Vcc1, (R18). The voltage at Pin 8 may
still be used as an RSSI. R9, C8, C14, C19, R17 and
D1 may then be omitted.
5. L1and C26 form the low noise matching network for the
RF amplifier. The values given are for the RF amplifier
specified in the Applications Circuit with no Audio AGC
connected. i.e. R17 and D1 omitted.
6. Suggested diode for use with the Audio AGC circuit
(D1 is not included on the general demonstration
circuit).
7. The value of R11 is dependent on the data output load.
R11 should allow sufficient current to drive the data
output load.
8
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