SA58641 Datasheet, PDF (11/17 Pages) NXP Semiconductors – High performance mixer FM IF system with high-speed RSSI

Philips Semiconductors
High performance mixer FM IF system
with high-speed RSSI
Objective data
SA58641
MIXER
IF/LIM OUT
IF/LIM IN
R9
R4
C12
R2
R6
C16
R7
R3
R5
R8
C11
L5
FLT1
C14
C17
FLT2
2
1
12
21
1
2
R11
C20
R10
C13
C15
SW5
C18
C19
20
19 18
17
16
15 14
13
12
11
MIXER
IF
AMP
OSCILLATOR
LIMITER
QUAD
C21
RSSI
V_CC
–+
PWR
DWN
–+
DATA
1
2
3
4
5
6
7
8
9
10
C1
C3
*L1
C2
L3
C4
C6
C5
C8
R1
FLT
3 C9
L4
RF IN
*L2
LO IN
C7
V_CC
RSSI
OUT
PWR
DWN
CTRL
FLT
4
C10
DATA
OUT
Automatic Test Circuit Component List
R1 8.2kΩ select
R2 6.42kΩ
R3 347.8Ω
R4 49.9Ω
R5 1kΩ
R6 49.9Ω
R7 6.42kΩ
R8 347.8Ω
R9 49.9Ω
R10 1kΩ
R11 49.9Ω
C1 0.1µF
C2 1–5pF select for input match
C3 0.1µF
C4 0.1µF
C5 1–5pF select for input match
C6 100pF
*C7 6.8µF 10V
C8 1µF
C9 39pF select
C10 0.1µF
C11 0.1µF
C12 160pF select
C13 1000pF
C14 0.1µF
C15 1000pF
C16 0.1µF
C17 0.1µF
C18 1000pF
C19 1000pF
C20 0.1µF
C21 1pF
L1
L2
L3
L4
L5
FLT1
FLT2
FLT3
FLT4
150nH select for input match
22nH select for input match
47nH select for input match
5.6µH select for input match
1.27–2.25µH select for mixer
output match
10.7MHz (Murata SFE10.7MA5-A)
10.7MHz (Murata SFE10.7MA5-A)
“C” message weighted
Active de-emphasis
*NOTE: This value can be reduced when a battery is the power source.
SR00501
Figure 9. SA58641 240.05MHz (RF) / 10.7MHz (IF) Test Circuit
2004 Dec 16
11