FUJITSU SEMICONDUCTOR
DATA SHEET
DS04-21380-1E
ASSP
Dual S
erial Input
PLL Frequency
Synthesizer
MB15F76UV
s
DESCRIPTION
The Fujitsu MB15F76UV is a serial input Phase Locked Loop (PLL) frequency synthesizer with a 6.0 GHz and a
1.5 GHz prescalers. Both prescalers for RF and IF have a 1/4 divider. A 16/17 or a 32/33 for the 6.0 GHz prescaler,
and a 4/5 or a 8/9 for the 1.5 GHz prescaler can be selected for the prescaler that enables pulse swallow operation.
The BiCMOS process is used, as a result a supply current is typically 8.5 mA at 3.0 V. The supply voltage range
is from 2.5 V to 3.6 V. A refined charge pump supplies well-balanced output current with 1.5 mA and 6 mA
selectable by serial data. The serial data format is the same as the MB15F76UL. Fast locking is achieved for
adopting the new circuit.
MB15F76UV is in the new small package (BCC18) which decreases a mount area of MB15F76UV about 50%
comparing with the former BCC20 (for dual PLL) .
MB15F76UV is ideally suited for wireless communication, such as W-LAN.
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PACKAGE
18-pin plastic BCC
(LCC-18P-M05)
MB15F76UV
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FEATURES
• High frequency operation
•
•
•
: RF synthesizer : 6.0 GHz Max
: IF synthesizer : 1.5 GHz Max
Low power supply voltage
: V
CC
=
2.5 V to 3.6 V
Ultra low power supply current : I
CC
=
8.5 mA Typ
(V
CC
=
3.0 V, Ta
= +25 °C,
SW
IF
=
SW
RF
=
0 in IF/RF locking state)
Direct power saving function : Power supply current in power saving mode
Typ 0.1
µA
(V
CC
=
3.0 V, Ta
= +25 °C
at 1 system)
Max 10
µA
(V
CC
=
3.0 V at 1 system)
Software selectable charge pump current : 1.5 mA/6.0 mA Typ
Dual modulus prescaler : 6.0 GHz prescaler (1/4 divider and 16/17 or 32/33 prescaler) /
1.5 GHz prescaler (1/4 divider and 4/5 or 8/9 prescaler)
23-bit shift register
Serial input binary 14-bit programmable reference divider : R
=
3 to 16,383
Serial input programmable divider consisting of:
- Binary 5-bit swallow counter : 0 to 31
- Binary 13-bit programmable counter : 3 to 8,191
Built-in high-speed tuning, low-noise phase comparator, current-switching type constant current circuit
On-chip phase control for phase comparator
On-chip phase comparator for fast lock and low noise
Built-in digital locking detector circuit to detect PLL locking and unlocking
Operating temperature : Ta
= −40 °C
to
+85 °C
Serial data format compatible with MB15F76UL
Ultra small Package Bcc18 (2.4 mm x 2.7 mm x 0.45 mm)
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PIN ASSIGNMENT
TOP VIEW
Clock
OSC
IN
Data
GND
fin
IF
Xfin
IF
GND
IF
V
CCIF
D
OIF
1
2
3
4
5
6
7
8
9
18 17 16 15
14
13
12
11
10
LE
fin
RF
Xfin
RF
GND
RF
V
CCRF
D
ORF
PS
IF
PS
RF
LD/fout
(LCC-18P-M05)
2
MB15F76UV
s
PIN DESCRIPTION
Pin no.
1
2
3
4
5
6
7
Pin
name
GND
fin
IF
Xfin
IF
GND
IF
V
CCIF
Do
IF
PS
IF
I/O
I
I
O
I
Descriptions
Ground pin for OSC input buffer and the shift register circuit.
Prescaler input pin for the IF-PLL.
Connection to an external VCO should be AC coupling.
Prescaler complimentary input for the IF-PLL section.
This pin should be grounded via a capacitor.
Ground pin for the IF-PLL section.
Power supply voltage input pin for the IF-PLL section, the shift register and the oscillator
input buffer.
Charge pump output for the IF-PLL section.
Power saving mode control pin for the IF-PLL section. This pin must be set at “L” when
the power supply is started up. (Open is prohibited.)
PS
IF
=
“H” ; Normal mode/PS
IF
=
“L” ; Power saving mode
Lock detect signal output (LD) /phase comparator monitoring output (fout) pin. The out-
put signal is selected by LDS bit in a serial data.
LDS bit
=
“H” ; outputs fout signal/LDS bit
=
“L” ; outputs LD signal
Power saving mode control for the RF-PLL section. This pin must be set at “L” when the
power supply is started up. (Open is prohibited. )
PS
RF
=
“H” ; Normal mode/PS
RF
=
“L” ; Power saving mode
Charge pump output for the RF-PLL section.
Power supply voltage input pin for the RF-PLL section.
Ground pin for the RF-PLL section
Prescaler complimentary input pin for the RF-PLL section.
This pin should be grounded via a capacitor.
Prescaler input pin for the RF-PLL.
Connection to an external VCO should be via AC coupling.
Load enable signal input pin (with the schmitt trigger circuit)
When LE is set “H”, data in the shift register is transferred to the corresponding latch ac-
cording to the control bit in a serial data.
Serial data input pin (with the schmitt trigger circuit)
Data is transferred to the corresponding latch (IF-ref. counter, IF-prog. counter,
RF-ref. counter, RF-prog. counter) according to the control bit in a serial data.
Clock input pin for the 23-bit shift register (with the schmitt trigger circuit)
One bit data is shifted into the shift register on a rising edge of the clock.
The programmable reference divider input pin. TCXO should be connected with an AC
coupling capacitor.
8
LD/fout
O
9
10
11
12
13
14
PS
RF
Do
RF
V
CCRF
GND
RF
Xfin
RF
fin
RF
I
O
I
I
15
LE
I
16
Data
I
17
18
Clock
OSC
IN
I
I
3
MB15F76UV
s
BLOCK DIAGRAM
V
CCIF
GND
IF
5
4
PS
IF
7
SW
IF
LDS
FC
IF
Intermittent
mode control
(IF-PLL)
3 bit latch
5 bit latch
13 bit latch
Phase Fast
comp. lock
(IF-PLL) Tuning
Charge
pump Current
(IF-PLL) Switch
6 Do
IF
Binary 5-bit
Binary 13-bit
swallow counter programmable
(IF-PLL)
counter (IF-PLL)
Prescaler
(IF-PLL)
Modulus
(4/5, 8/9)
fin
IF
2
Xfin
IF
3
1/4 divider
T1
T2
2 bit latch
14 bit latch
Binary 14-bit pro-
grammable ref.
counter(IF-PLL)
fr
IF
OSC
IN
18
fp
IF
Lock Det.
(IF-PLL)
1 bit latch
C/P setting
counter
LD
IF
Fast
lock
Tuning
fr
RF
T1
OR
2 bit latch
T2
Binary 14-bit pro-
grammable ref.
counter (RF-PLL))
C/P setting
counter
AND
Selector
14 bit latch
1 bit latch
LD
RF
LD
fr
IF
fr
RF
fp
IF
fp
RF
8 LD/
fout
fin
RF
14
Xfin
RF
13
1/4 divider
Modulus
(16/17, 32/33)
Prescaler
(RF-PLL)
fp
RF
Lock Det.
(RF-PLL)
PS
RF
9
Intermittent
mode control
(RF-PLL)
Binary 13-bit
Binary 5-bit
swallow counter programmable
counter (RF-PLL)
(RF-PLL)
Phase
comp.
(RF-PLL)
Fast lock
Tuning
Charge
Current
pump
Switch
(RF-PLL)
SW
RF
FC
RF
LDS
10 Do
RF
fp
RF
3 bit latch
5 bit latch
13 bit latch
LE 15
Schmitt
trigger
circuit
Schmitt
trigger
circuit
Schmitt
trigger
circuit
Latch selector
Data 16
Clock 17
C C
N N
1 2
23-bit shift register
1
GND
11
V
CCRF
12
GND
RF
4
MB15F76UV
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ABSOLUTE MAXIMUM RATINGS
Parameter
Power supply voltage
Input voltage
Output voltage
Storage temperature
LD/fout
Do
IF
, Do
RF
Symbol
V
CC
V
I
V
O
V
DO
Tstg
Rating
Min
−0.5
−0.5
GND
GND
−55
Max
4.0
V
CC
+
0.5
V
CC
V
CC
+125
Unit
V
V
V
V
°C
WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current,
temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings.
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RECOMMENDED OPERATING CONDITIONS
Parameter
Power supply voltage
Input voltage
Operating temperature
Symbol
V
CC
V
I
Ta
Value
Min
2.5
GND
−40
Typ
3.0
Max
3.6
V
CC
+85
Unit
V
V
°C
Remarks
V
CCRF
=
V
CCIF
Note :
•
V
CCRF
and V
CCIF
must supply equal voltage.
Even if either RF-PLL or IF-PLL is not used, power must be supplied to V
CCRF
and V
CCIF
to keep them
equal.
It is recommended that the non-use PLL is controlled by power saving function.
•
Although this device contains an anti-static element to prevent electrostatic breakdown and the circuitry
has been improved in electrostatic protection, observe the following precautions when handling the device.
•
When storing and transporting the device, put it in a conductive case.
•
Before handling the device, confirm the (jigs and) tools to be used have been uncharged (grounded) as
well as yourself. Use a conductive sheet on working bench.
•
Before fitting the device into or removing it from the socket, turn the power supply off.
•
When handling (such as transporting) the device mounted board, protect the leads with a conductive
sheet.
WARNING: The recommended operating conditions are required in order to ensure the normal operation of the
semiconductor device. All of the device’s electrical characteristics are warranted when the device is
operated within these ranges.
Always use semiconductor devices within their recommended operating condition ranges. Operation
outside these ranges may adversely affect reliability and could result in device failure.
No warranty is made with respect to uses, operating conditions, or combinations not represented on
the data sheet. Users considering application outside the listed conditions are advised to contact their
FUJITSU representatives beforehand.
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