Surface Mount Frequency Synthesizer
MLS9204-01745
M/A-COM Division of AMP Incorporated
s
North America: Tel. (800) 366-2266, Fax (800) 618-8883
s
Asia/Pacific: Tel.+85 2 2111 8088,
Fax +85 2 2111 8087
s
Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
www.macom.com
AMP and Connecting at a Higher Level are trademarks.
Specifications subject to change without notice.
V2.00
Parameter
Test Conditions
Units
Min.
Typ.
Max.
Frequency Range (F
OUT
)
2
Over T
OP
MHz
1710
---
1780
RF Output Power (P
OUT
)
3
Over T
OP
dBm
-3.0
---
+3.0
Harmonic Output
dBc
---
-19
-10
Spurious Output
Phase comparison frequency (F
OUT
F)
dBc
---
-80
-60
Reference breakthrough (F
OUT
F
R
)
dBc
---
-85
---
Phase Noise
4
SSB at 1 kHz offset from carrier
dBc/Hz
---
-70
-65
SSB at 10 kHz offset from carrier
dBc/Hz
---
-98
-90
SSB at 100 kHz offset from carrier
dBc/Hz
---
-118
-110
SSB at 1.25 MHz offset from carrier
dBc/Hz
---
-139
---
Integrated Phase Noise
300 Hz to 3 kHz bandwidth
mrad rms
---
30
---
Frequency Switching Time
5,6
Over F
OUT
, measured to within 500 Hz
ms
---
35
---
VCO Supply Current (I
CC1
)
mA
---
17
20
PLL Supply Current (I
CC2
)
mA
---
10
15
VCO Supply Voltage (V
CC1
)
Recommended operating limit
V
+4.75
---
+5.25
PLL Supply Voltage (V
CC2
)
Recommended operating limit
V
+4.75
---
+5.25
Step Size (
F)
7
Recommended operating limit
kHz
---
50
---
Reference Frequency (F
R
)
8
0.5 to 2.0 Vpp sine wave into a.c. coupled
CMOS. Recommended operating limit
MHz
3
---
20
Features
Integrated VCO/PLL
Miniature SMT Package
Low Phase Noise
+5V Operation
Description
The MLS9204-01745 synthesizer design integrates a high perfor-
mance buffered VCO, PLL circuit and discrete loop filter in a
surface mount package. The SMT packaging provides electrical
shielding, easy PCB assembly and repeatable performance. The
synthesizer is designed for use in PCS CDMA base stations and is
optimised for coverage of the PCS Rx band with 50 kHz step size
and low phase noise.
M/A-COM synthesizers are manufactured in an ISO 9001 certi-
fied facility, incorporating surface mount assembly and automated
electrical testing. This ensures consistent electrical performance
and quality over volume production quantities.
Electrical Specifications
1
, T
A
= +25C, V
CC
= +5V,
F = 50 kHz, F
R
= 15 MHz
(unless otherwise stated)
1. All specification limits are indicated values and apply over F
OUT
and
for 50
load impedance.
2. Programming control is 3 wire serial CMOS or TTL levels, in accor-
dance with National Semiconductor LMX 2325.
3. Output power window includes variation over operating temperature
range (T
OP
) -40C to +85C and output frequency range (F
OUT
).
4. See plot for typical phase noise at other frequency offsets.
Surface Mount Frequency Synthesizer
CDMA 1710 - 1780 MHz
MLS9204-01745
5. See plot for typical full band switching time measured to within
other offsets from final frequency.
6. Integral PLL lock monitor output, TTL high locked, TTL low un-
locked.
7. Device designed for loop bandwidth of 225 Hz.
8. Reference frequency input impedance 10k
min.
12 Lead Package
1.0
13.2
6
.0 M
A
X
1
2.0
14
.6
0.2
2.0
TYP.in 5 POSITIONS
7
8
11
12
10
9
6
4
3
2
1
DATE CODE
PART NO.
M/ A- COM LTD
IDENT
DETAIL A
0.6
0.8
5
DETAIL A
Surface Mount Frequency Synthesizer
MLS9204-01745
M/A-COM Division of AMP Incorporated
s
North America: Tel. (800) 366-2266, Fax (800) 618-8883
s
Asia/Pacific: Tel.+85 2 2111 8088,
Fax +85 2 2111 8087
s
Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
www.macom.com
AMP and Connecting at a Higher Level are trademarks.
Specifications subject to change without notice.
V2.00
Reference Breakthrough Spurious
Phase Noise
0
0
0
0
0
0
4.7 5 V
5.0 0 V
5.2 5 V
Absolute Maximum Ratings
1,2
Parameter
Absolute Maximum
VCO Supply Voltage (V
CC1
)
3
+6.5V
PLL Supply Voltage (V
CC2
)
3
+6.5V
Reference Frequency Voltage
-0.3V to +6.5V
Data, Clock, Strobe Voltages
-0.3V to +6.5V
Storage Temperature (T
STOR
)
-45C to +125C
Solder Assembly Temperature
See App Note M2032
1. Exceeding these limits may cause permanent damage.
2. Static sensitive, observe appropriate handling precautions.
3. An external series resistor and bypass capacitor will allow opera-
tion at higher supply voltage and will improve power supply decou-
pling and noise suppression.
Environmental Specifications
Devices are designed to function over the operating temperature
range (T
OP
) of -40C to +85C and after exposure to the shock,
vibration, thermal shock and moisture conditions typically encoun-
tered in base station and other infrastructure environments.
Functional Configuration
Lead
Function
Lead
Function
1
Ground
7
Ground
2
Clock Input
8
Reference
Frequency Input
3
V
CC1
(VCO)
9
V
CC2
(PLL)
4
PLL Lock
Monitor Output
10
Data Input
5
RF Output
11
Strobe/Enable Input
6
Ground
12
Ground
Phase Comparator Spurious
Typical Performance
Ordering Information
Synthesizers are available in either tape and reel or tube packaging.
To order devices in tape and reel requires the suffix TR to be
added to the part number, i.e. MLS9204-01745TR. Quantity 500
per 13 inch reel, see Application Note M2030.
Full Band Switching Time
Output Power vs Temperature
Output Power vs Supply Voltage
+ 25 C
-40 C
+ 85 C
PHASE NOI
SE (
d
Bc
/
H
z)
FREQUENCY OFFSET FROM CARRIER (Hz)
-40
-60
-80
-100
-120
-140
-160
10
100
1K
10K
100K
1M
10M
TI
M
E
(ms)
OFFSET FROM FINAL FREQUENCY (Hz)
500
400
300
200
100
0
100K
10K
1K
100
10
1
OUT
P
UT
POW
E
R (
d
Bm
)
FREQUENCY (MHz)
3.0
2.0
1.0
0.0
-1.0
-2.0
-3.0
1680
1700
1720
1740
1760
1780
1800
1820
OUT
P
UT
POW
E
R (
d
Bm
)
FREQUENCY (MHz)
3.0
2.0
1.0
0.0
-1.0
-2.0
-3.0
SPURI
OUS LEVEL (
d
Bc
)
FREQUENCY OFFSET FROM CARRIER (kHz)
0
-20
-40
-60
-80
-100
-100
-80
-60
-40
-20
0
20
40
60
80
100
SPURI
OUS LEVEL (
d
Bc
)
FREQUENCY OFFSET FROM CARRIER (MHz)
0
-20
-40
-60
-80
-100
-20
-15
-10
-5
0
5
10
15
20
1680
1700
1720
1740
1760
1780
1800
1820
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