FUJITSU MB15F86ULPFT

FUJITSU SEMICONDUCTOR
DATA SHEET
DS04-21372-1E
ASSP
Fractional-N
PLL Frequency Synthesizer
MB15F86UL
■ DESCRIPTION
The Fujitsu MB15F86UL is Fractional-N Phase Locked Loop (PLL) frequency synthesizer with fast lock up function.
The Fractional-N PLL operating up to 2500* MHz and the integer PLL operating up to 600 MHz are integrated on
one chip.
The MB15F86UL is used, as charge pump which is well-balanced output current with 1.5 mA and 6 mA selectable
by serial data, direct power save control and digital lock detector. In addition, the MB15F86UL adopts a new
architecture to achieve fast lock.
The new package (Thin Bump Chip Carrier20) decreases a mount area of MB15F86UL more than 30% comparing
with the former B.C.C.16 (for dual PLL, MB15F03SL) .
The MB15F86UL is ideally suited for wireless mobile communications, such as TDMA or CDMA.
■ FEATURES
• High frequency operation
: RF synthesizer : 2500* MHz Max
: IF synthesizer : 600 MHz Max
• Low power supply voltage
: VCC = 2.7 V to 3.6 V
• Ultra Low power supply current : ICC = 5.8 mA Typ (VCC = Vp = 3.0 V, Ta = +25 °C, SW = 0 in IF and RF locking
state)
(Continued)
■ PACKAGES
20-pin, Plastic TSSOP
20-pad, Plastic BCC
(FPT-20P-M06)
(LCC-20P-M05)
MB15F86UL
(Continued)
• Direct power saving function : Power supply current in power saving mode
Typ 0.1 µA (VCC = Vp = 3.0 V, Ta = +25 °C) , Max 10 µA (VCC = Vp = 3.0 V)
• Fractional function : modulo 3 to 16 programmable (implemented in RF-PLL)
• Dual modulus prescaler : 2500* MHz prescaler (16/17 or 32/33) /600 MHz prescaler (8/9 or 16/17)
• Serial input 14-bit programmable reference divider : R = (RF section 8 bit) 3 to 255, (IF section 14 bit) 3 to
16, 383
• Serial input programmable divider consisting of :
RF section - Binary 5-bit swallow counter : 0 to 31
- Binary 10-bit programmable counter : 18 to 1,023
- Binary 4-bit fractional counter numerator : 0 to 15
IF section - Binary 4-bit swallow counter : 0 to 15
- Binary 11-bit programmable counter : 3 to 2,047
• On-chip phase comparator for fast lock and low noise
• Operating temperature : Ta = −40 °C to +85 °C
• Small package Bump Chip Carrier.0 (3.4 mm × 3.6 mm × 0.6 mm)
* : In case of fmax = 2500 MHz, the following conditions must be fulfilled. Except for it, fmax is up to 2000 MHz.
Prescaler ratio = 32 (N > P) at all divide ratio of used operating frequency.
Refer to a calculation formula of divide ratio. fVCORF = (P×N+A+F/Q) ×fOSC/R
■ PIN ASSIGNMENTS
(BCC-20)
TOP VIEW
(TSSOP-20)
TOP VIEW
OSCIN
1
20
Clock
GND
2
19
Data
finIF
3
18
LE
XfinIF
4
17
finRF
GNDIF
5
16
XfinRF
VCCIF
6
15
GNDRF
PSIF
7
14
VpIF
8
13
DOIF
9
12
VpRF
LD/fout
10
11
DORF
finIF
1
20 19 18 17 16
XfinIF
2
finRF
GNDIF
VCCIF
3
4
15
14
GNDRF
VCCRF
PSIF
5
13
12
PSRF
VpIF
6
(FPT-20P-M06)
2
OSCIN Data
GND Clock
7
8
9 10 11
DOIF DORF
LD/fout VpRF
(LCC-20P-M05)
LE
XfinRF
VCCRF
PSRF
MB15F86UL
■ PIN DESCRIPTION
Pin no.
TSSOP BCC
Pin
name
I/O
Descriptions
I
The programmable reference divider input pin. TCXO should be connected with
an AC coupling capacitor.
1
19
OSCIN
2
20
GND
3
1
finIF
I
Prescaler input pin for the IF-PLL.
Connection to an external VCO should be AC coupling.
4
2
XfinIF
I
Prescaler complimentary input pin for the IF-PLL section.
This pin should be grounded via a capacitor.
5
3
GNDIF
6
4
VCCIF
7
5
PSIF
8
6
VpIF
 Power supply voltage input pin for the IF-PLL charge pump.
9
7
DoIF
O
Charge pump output pin for the IF-PLL section.
Phase characteristics of the phase detector can be reversed by FC-bit.
10
8
LD/fout
O
Look detect signal output (LD) /phase comparator monitoring output (fout) pins.
The output signal is selected by an LDS bit in a serial data.
LDS bit = “H”; outputs fout signal / LDS bit = “L”; outputs LD signal
11
9
DoRF
O
Charge pump output pin for the RF-PLL section.
Phase characteristics of the phase detector can be reversed by FC-bit.
12
10
VpRF
 Power supply voltage input pin for the RF-PLL charge pump.
13
11
PSRF
I
14
12
VCCRF

15
13
GNDRF
16
14
XfinRF
I
Prescaler complimentary input pin for the RF-PLL section.
This pin should be grounded via a capacitor.
17
15
finRF
I
Prescaler input pin for the RF-PLL.
Connection to an external VCO should be AC coupling.
18
16
LE
I
Load enable signal input pin (with the schmitt trigger circuit) .
On a rising edge of load enable, data in the shift register is transferred to the corresponding latch according to the control bit in a serial data.
19
17
Data
I
Serial data input pin (with the schmitt trigger circuit) .
A 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.
20
18
Clock
I
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.
 Ground pin for OSC input buffer and the shift register circuit.
 Ground pin for the IF-PLL section.
Power supply voltage input pin for the IF-PLL section (except for the charge
 pump circuit) , the shift register and the oscillator input buffer.
When power is OFF, latched data of IF-PLL is lost.
I
Power saving mode control signal pin for the IF-PLL section. This pin must be set
at “L” when the power supply is started up. (Open is prohibited.)
PSIF = “H”; Normal mode / PSIF = “L”; Power saving mode
Power saving mode control pin for the RF-PLL section. This pin must be set at
“L” when the power supply is started up. (Open is prohibited. )
PSRF = “H”; Normal mode / PSRF = “L”; Power saving mode
Power supply voltage input pin for the RF-PLL section (except for the charge
pump circuit) .
 Ground pin for the RF-PLL section.
3
MB15F86UL
■ BLOCK DIAGRAM
VCCIF
6 (4)
XfinRF (14)
Prescaler
(RF-PLL)
16/17
32/33
CSC
CNT
frRF
frRF
CSF
FCF
SWF
Phase
comp.
(RF-PLL)
Selector
Fractional Counter
3 to 16
fpRF
OR
Charge
pump
(RF-PLL)
fpRF
SC
(RF-PLL)
13
PSRF (11)
PSRF
Binary 5-bit
Binary 10-bit
swallow counter programmable
(RF-PLL)
counter (RF-PLL)
5-bit latch
LE
Data
Clock
10-bit latch
F
F
F
1
2
3
4
4-bit latch
18
(16) Schmitt
circuit
19
(17)
20
(18)
Schmitt
circuit
Schmitt
circuit
Latch selector
C
N
1
C
N
2
C
N
3
23-bit shift
register
2 (20)
GND
O : TSSOP 20
( ) : BCC 20
4
F
(12)
VccRF
14
10
(8)
LD/fout
Lock
Det.
(RF-PLL)
10-bit latch
Q1~Q5
MD2
SC2
SC1
Q5
Q4
Q3
Q1
Binary 8-bit
programmable
ref. counter
(RF-PLL)
17
16
LDIF
LDRF
frIF
frRF
fpIF
fpRF
Q1 Q2 Q3 Q4 Q5
8-bit latch
finRF (15)
FCC
Selector
1
(19)
OR
9 DoIF
(7)
Lock Det.
(IF-PLL)
6-bit latch
14-bit latch
OSCIN
SWC
Binary 14-bit
programmable
ref. counter
(IF-PLL)
T2
Prescaler
(IF-PLL)
8/9, 16/17
Charge
pump
(IF-PLL)
Phase
comp.
(IF-PLL)
Binary 11-bit
Binary 4-bit
swallow counter programmable
counter (IF-PLL)
(IF-PLL)
T1
4
XfinIF (2)
11-bit latch
Q2
finIF 3
(1)
4-bit latch
PSIF
LDS
PSIF 7
(5)
VpIF
8 (6)
GNDIF
5 (3)
15 (13)
GNDRF
(10)
VpRF
12
11
(9)
DoRF
MB15F86UL
■ ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Unit
Min
Max
VCC
−0.5
+4.0
V
Vp
VCC
+4.0
V
VI
−0.5
VCC + 0.5
V
LD / fout
VO
GND
VCC
V
Do
VDO
GND
Vp
V
Tstg
−55
+125
°C
Power supply voltage
Input voltage
Output voltage
Rating
Storage temperature
Note : Permanent device damage may occur if the above Absolute Maximum Ratings are exceeded. Functional
operation should be restricted to the conditions as detailed in the operational sections of this data sheet.
Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
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.
■ RECOMMENDED OPERATING CONDITIONS
Parameter
Symbol
Value
Unit
Remark
3.6
V
VCCRF = VCCIF
3.0
3.6
V
GND

VCC
V
−40

+85
°C
Min
Typ
Max
VCC
2.7
3.0
Vp
VCC
Input voltage
VI
Operating temperature
Ta
Power supply voltage
Handling Precautions
(1) VCCRF, VpRF, VCCIF and VpIF must supply equal voltage.
Even if either RF-PLL or IF PLL is not used, power must be supplied to VCCRF, VpRF, VCCIF and VpIF to
keep them equal. It is recommended that the non-use PLL is controlled by power saving function.
(2) To protect against damage by electrostatic discharge, note the following handling precautions :
-Store and transport devices in conductive containers.
-Use properly grounded workstations, tools, and equipment.
-Turn off power before inserting or removing this device into or from a socket.
-Protect leads with conductive sheet, when transporting a board mounted device.
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.
5
MB15F86UL
■ ELECTRICAL CHARACTERISTICS
*
(VCC = 2.7 V to 3.6 V, Ta = −40 °C to +85 °C)
Parameter
Power supply current*
Symbol
“L” level input voltage
“H” level input voltage
“L” level input voltage
“H” level input current
“L” level input current
“H” level input current
“L” level input current
Typ
Max
1.6
2.3
mA
ICCRF *1
finRF = 2000 MHz
VCCRF = VpRF = 3.0 V, SWF = 1
2.8
4.2
5.8
mA
IPSIF
PS = “L”

0.1 *2
10
µA
IPSRF
PS = “L”

0.1 *2
10
µA
finIF
IF PLL
100

600
MHz
finRF
RF PLL
400

2000
MHz
finRF
*3, *8
finRF
RF PLL
400

2500
MHz
OSCIN
fOSC
3

40
MHz
*3

finIF
PfinIF
IF PLL, 50 Ω system
−15

+2
dBm
finRF
PfinRF
RF PLL, 50 Ω system
−15

+2
dBm
OSCIN
VOSC
0.5

VCC
Vp-p
Data,
Clock,
LE
VIH
Schmitt triger input
VCC×
0.7 + 0.4


VIL
Schmitt triger input


VCC×
0.3 − 0.4
PSIF,
PSRF
VIH

VCC×0.7


VIL



VCC×0.3
IIH *4

−1.0

+1.0
Data,
Clock,
LE,
PSIF,
PSRF
OSCIN


−1.0

+1.0
IIH

0

+100
IIL *4

−100

0
VCC − 0.4




0.4
I
VOH
VCC = Vp = 3.0 V, IOH = −1 mA
VOL
VCC = Vp = 3.0 V, IOL = 1 mA
“H” level output voltage DoIF
“L” level output voltage DoRF
VDOH
VCC = Vp = 3.0 V, IDOH = −0.5 mA Vp − 0.4


VDOL
VCC = Vp = 3.0 V, IDOL = 0.5 mA


0.4
IOFF
VCC = Vp = 3.0 V
VOFF = 0.5 V to Vp − 0.5 V


2.5
IOH *4
VCC = Vp = 3.0 V


−1.0
IOL*4
VCC = Vp = 3.0 V
1.0


DoIF
DoRF
“H” level output current LD/
“L” level output current fout
V
V
µA
IL *4
“H” level output voltage LD/
“L” level output voltage fout
High impedance
cutoff current
Unit
1.0
1
finRF
“H” level input voltage
Min
finIF = 480 MHz
VCCIF = VpIF = 3.0 V, SWC = 0
finIF *3
Input sensitivity
Value
ICCIF *1
Power saving current
Operating frequency
Condition
µA
V
V
nA
mA
(Continued)
6
MB15F86UL
(Continued)
(VCC = 2.7 V to 3.6 V, Ta = −40 °C to +85 °C)
Parameter
Symbol
“H” level output
current
IDOH *4
DoIF
DoRF
“L” level output
current
IDOL
IDOL/IDOH IDOMT *5
Charge pump
current rate
DOVD *6
vs VDO
I
vs Ta
IDOTA *7
Value
Condition
Unit
Min
Typ
Max
CS bit = “H”
−8.2
−6.0
−4.1
mA
CS bit = “L”
−2.2
−1.5
−0.8
mA
CS bit = “H”
4.1
6.0
8.2
mA
CS bit = “L”
0.8
1.5
2.2
mA
VDO = Vp / 2

3

%
0.5 V ≤ VDO ≤ Vp − 0.5 V

10

%
−40 °C ≤ Ta ≤ +85 °C,
VDO = Vp / 2

5

%
VCC = Vp = 3.0 V
VDOH = Vp / 2
Ta = +25 °C
VCC = Vp = 3.0 V
VDOL = Vp / 2
Ta = +25 °C
*1 : Conditions ; fosc = 13 MHz, Ta = +25 °C in locking state.
*2 : VCCIF = VpIF = VCCRF = VpRF = 3.0 V, fosc = 13 MHz, Ta = +25 °C, in power saving mode.
*3 : AC coupling. 1000 pF capacitor is connected.
*4 : The symbol “–” (minus) means direction of current flow.
*5 : VCC = Vp = 3.0 V, Ta = +25 °C (||I3| − |I4||) / [ (|I3| + |I4|) / 2] × 100 (%)
*6 : VCC = Vp = 3.0 V, Ta = +25 °C [ (||I2| − |I1||) / 2] / [ (|I1| + |I2|) / 2] × 100 (%) (Applied to each lDOL and lDOH)
*7 : VCC = Vp = 3.0 V, [ (||IDO (85 C) | − |IDO (–40 C) ||) / 2] / [ (|IDO (85 C) | + |IDO (–40 C) |) / 2] × 100 (%) (Applied to each IDOL and IDOH)
*8 : In case of *fmax = 2500 MHz, the following conditions must be fulfilled. Except for it, fmax is up to 2000 MHz.
Prescaler ratio = 32 (N > P) at all divide ratio of used operating frequency.
Refer to a calculation formula of divide ratio. fVCORF = (P×N+A+F/Q) ×fOSC/R
I2
I3
I1
IDOL
IDOH
0.5
I1
I4
I2
Vp/2
Vp − 0.5
Vp
output voltage (V)
7
MB15F86UL
■ FUNCTIONAL DESCRIPTION
Serial Data Input
Serial data is entered using three pins, Data pin, Clock pin, and LE pin. Programmable dividers of IF/RF-PLL
sections and programmable reference dividers of IF/RF-PLL sections are controlled individually.
Serial data of binary code is entered through Data pin.
On a rising edge of clock, one bit of serial data is transferred into the shift register. On a rising edge of load
enable signal, the data stored in the shift register is transferred to one of latches depending upon the control bit
data setting.
• Control Bit
The programmable
The programmable
counter and the
reference counter for
swallow counter for the
the IF-PLL
IF-PLL
The programmable
reference counter for
the RF-PLL
The prgrammable
counter and the
swallow counter for
the RF-PLL
CN1
0
1
0
1
CN2
0
0
1
1
CN3
0
0
0
0
Note : CN3 = 1 is prohibited
(1) Serial data format
LSB
1
2
3
4
5
Direction of data shift
6
7
8
9 10 11
12
13
14
15
16
17
18
19
20
21
0
0
0
RC1 RC2 RC3 RC4 RC5 RC6 RC7 RC8 RC9 RC10 RC11 RC12 RC13 RC14 LDS T1 T2 SWC FCC CSC
1
0
0
AC1 AC2 AC3 AC4
0
1
0
RF1 RF2 RF3 RF4 RF5 RF6 RF7 RF8
1
1
0
AF1 AF2 AF3 AF4 AF5 NF1 NF2 NF3 NF4 NF5 NF6 NF7 NF8 NF9 NF10 F1 F2
0
0
0
NC1 NC2 NC3 NC4 NC5 NC6 NC7 NC8 NC9 NC10 NC11 X
0
Q1 Q2 Q3 Q4 Q5
RC1 to RC14
AC1 to AC4
NC1 to NC11
LDS, T1, T2
SWC
FCC
CSC
RF1 to RF8
Q1 to Q5
AF1 to AF5
NF1 to NF10
F1 to F4
SC1, SC2
SWF
FCF
CSF
X
F3
: Divide ratio setting bits for the reference counter of the IF (3 to 16383)
: Divide ratio setting bits for the swallow counter of the IF (0 to 15, A < N)
: Divide ratio setting bits for the programmable counter of the IF (3 to 2047)
: Select bits for the lock detect output or a monitoring phase comparison frequency
: Divide ratio setting for the prescaler of the IF
: Phase control bit for the phase detector of the IF
: Charge pump current select bit of the IF
: Divide ratio setting bits for the reference counter of the RF (3 to 255)
: Fractional-N increment setting bit (3 to 16)
: Divide ratio setting bits for the swallow counter of the RF (0 to 31, A < N − 2)
: Divide ratio setting bits for the programmable counter of the RF (18 to 1023)
: Fractional-N increment setting bit for the fractional accumulator (0 to 15, F < Q)
: Spurious cancel set bit of the RF.
: Divide ratio setting for the prescaler of the RF
: Phase control bit for the phase detector of the RF.
: Charge pump current select bit of the RF
: Dummy bit (Set “0” or “1”)
Note: Data input with MSB first.
X
0 SC1 SC2 SWF FCF CSF
Control bit (CN3)
Control bit (CN2)
Control bit (CN1)
8
MSB
22 23
F4
0
MB15F86UL
(2) Data Setting
• RF synthesizer Data Setting (Fractional-N)
The divide ratio can be calculated using the following equation :
fVCORF = NTOTAL × fosc÷R
NTOTAL = P × N + A + F / Q
←
(A < N − 2, F < Q)
fVCORF
: Output frequency of external voltage controlled oscillator (VCO)
NTOTAL
: Total division ratio from prescaler input to the phase detector input
fosc
: Output frequency of the reference frequency oscillator
R
: Preset divide ratio of binary 8 bit reference counter (3 to 255)
P
: Preset divide ratio of modulus prescaler (16 or 32)
N
: Preset divide ratio of binary 10 bit programmable counter (18 to 1023)
A
: Preset divide ratio of binary 5 bit swallow counter (0 to 31)
F
: A numerator of fractional-N (0 to 15)
Q
: A denominator of fractional-N, modulo 3 to 16
Note : When Q is set more than 10, a prescaler ratio should be set 32.
• Binary 8-bit Programmable Reference Counter Data Setting (RF1 to RF8)
Divide ratio (R)
RF8
RF7
RF6
RF5
RF4
RF3
RF2
RF1
3
0
0
0
0
0
0
1
1
4
0
0
0
0
0
1
0
0









52
0
0
1
1
0
1
0
0









255
1
1
1
1
1
1
1
1
Note : Divide ratio less than 3 is prohibited.
• Fractional-N numerator of the fractional accumulator Data Setting (F1 to F4)
Setting value(F)
F4
F3
F2
F1
0
0
0
0
0
1
0
0
0
1
2
0
0
1
0





15
1
1
1
1
Note : F < Q
• Fractional-N denominator of the fractional accumulator Data Setting (Q1 to Q5)
Setting value(Q)
Q5
Q4
Q3
Q2
Q1
3
0
0
0
1
1
4
0
0
1
0
0
5
0
0
1
0
1






16
1
0
0
0
0
Note : F < Q
9
MB15F86UL
• Binary 10-bit Programable Counter Data Setting (NF1 to NF10)
Divide ratio (N)
18
19

32

1023
NF10
0
0

0

1
NF9
0
0

0

1
NF8
0
0

0

1
NF7
0
0

0

1
NF6
0
0

1

1
NF5
1
1

0

1
NF4
0
0

0

1
Note : Divide ratio less than 18 is prohibited.
• Binary 5-bit Swallow Counter Data Setting (AF1 to AF5)
Divide ratio (A)
AF5
AF4
AF3
AF2
AF1
0
0
0
0
0
0
1
0
0
0
0
1
2
0
0
0
1
0






31
1
1
1
1
1
Note : A < N − 2
• Charge pump current select Bit Setting
Current value
CSF
1
±6.0 mA
0
±1.5 mA
• Spurious cancel Bit Setting
Spurious cancel amount
SC1
SC2
Large
0
0
Midium
0
1
Small
1
0
Note : The bits set how much the amount of spurious cancel.
If the Large is selected, a spurious is tended to become small.
• Prescaler Data Setting (SWF)
SWF
Prescaler divide ratio
10
1
16/17
0
32/33
NF3
0
0

0

1
NF2
1
1

0

1
NF1
0
1

0

1
MB15F86UL
• IF synthesizer Data Setting (Integer)
The divide ratio can be calculated using the following equation :
fVCOIF = [ (P × N) + A] × fosc÷R
fVCOIF
P
N
A
fosc
R
(A < N)
: Output frequency of external voltage controlled oscillator (VCO)
: Preset divide ratio of modulus prescaler (8 or 16)
: Preset divide ratio of binary 11 bit programmable counter (3 to 2047)
: Preset divide ratio of binary 4 bit swallow counter (0 to 15)
: Output frequency of the reference frequency oscillator
: Preset divide ratio of binary 14 bit reference counter (3 to 16383)
• Binary 14-bit Programmable Reference Counter Data Setting (RC1 to RC14)
Divide ratio
(R)
RC14
RC13
RC12
RC11
RC10
RC9
RC8
RC7
RC6
RC5
RC4
RC3
RC2
RC1
3
0
0
0
0
0
0
0
0
0
0
0
0
1
1
4
0
0
0
0
0
0
0
0
0
0
0
1
0
0















16383
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Note : Divide ratio less than 3 is prohibited.
• Binary 11-bit Programmable Counter Data Setting (NC1 to NC11)
Divide ratio (N)
NC11
NC10
NC9
NC8
NC7
NC6
NC5
NC4
NC3
NC2
NC1
3
0
0
0
0
0
0
0
0
0
1
1
4
0
0
0
0
0
0
0
0
1
0
0












2047
1
1
1
1
1
1
1
1
1
1
1
Note : Divide ratio less than 3 is prohibited.
• Binary 4-bit Swallow Counter Data Setting (AC1 to AC4)
Divide ratio (A)
AC4
AC3
AC2
AC1
0
0
0
0
0
1
0
0
0
1
2
0
0
1
0





15
1
1
1
1
Note : A < N
• Prescaler Data Setting (SWC)
Prescaler divide ratio
SWC
1
8/9
0
16/17
11
MB15F86UL
• Charge pump current select Data Setting (CSC)
Do current
CSC
1
± 6.0 mA
0
± 1.5 mA
• Common setting
• LD/fout Output Select Data Setting
LD/fout
LDS
T1
T2
0


frIF
1
0
0
frRF
1
1
0
fpIF
1
0
1
fpRF
1
1
1
LD output
fout
output
• Phase Comparator Phase Switching Data Setting
FCF/C = Low
FCF/C = High
DOIF, RF
fr > fp
H
L
fr = fp
Z
Z
fr < fp
L
H
VCO polarity
1
2
Notes : • Z = High-Z
• Depending upon the VCO and LPF polarity, FC bit should be set.
When designing a synthesizer, the FC bit setting depends on the VCO and LPF characteristics.
When the LPF and VCO characteristics are similar to (1) ,
set FC bit “H”.
When the VCO characteristics are similar to (2) ,
set FC bit “L”.
(1)
VCO output
frequency
(2)
VCO input voltage
12
MB15F86UL
• Power Saving Mode (Intermittent Mode Control)
• PS Pin Setting
PS pin
H
Normal mode
L
Power saving mode
Status
The intermittent mode control circuit reduces the PLL power consumption.
By setting the PS pin low, the device enters the power saving mode, reducing the current consumption.
See “■ ELECTRICAL CHARACTERISTICS” for the specific value.
The phase detector output, Do, becomes high impedance.
For the dual PLL, the lock detector, LD, is shown in the LD Output Logic table.
Setting the PS pin high releases the power saving mode, and the device works normally.
The intermittent mode control circuit also ensures a smooth start-up when the device returns to normal operation.
When the PLL is returned to normal operation, the phase comparator output signal is unpredictable. This is
because of the unknown relationship between the comparison frequency (fp) and the reference frequency (fr)
which can cause a major change in the comparator output, resulting in a VCO frequency jump and an increase
in lockup time.
To prevent a major VCO frequency jump, the intermittent mode control circuit limits the magnitude of the error
signal from the phase detector when it returns to normal operation.
Notes: •When power (VCC) is first applied, the device must be in standby mode and PS = Low, for at least 1 µs.
•PS pin must be set “L” for Power ON and then the PS mode should be removed after input serial data.
OFF
VCC
ON
tV ≥ 1 µs
Clock
Data
LE
tPS ≥ 100 ns
PS
(1)
(2)
(3)
(1) PS = L (power saving mode) at Power ON
(2) Set serial data at least 1 µs after power supply remains stable (VCC ≥ 2.2 V) .
(3) Release power saving mode (PS : L → H) at least 100 ns after setting serial data.
13
MB15F86UL
■ SERIAL DATA INPUT TIMING
1st data
2nd data
Control bit
Data
MSB
Invalid data
LSB
Clock
LE
t1
t4
t3
t2
t5
t6
t7
On the rising edge of the clock, one bit of data is transferred into shift register.
Parameter Min
Typ
Max
Unit
Parameter
Min
Typ Max
t1
20


ns
t5
100


ns
t2
20


ns
t6
20


ns
t3
30


ns
t7
100


ns
t4
30


ns
Note : LE should be “L” when the data is transferred into the shift register.
14
Unit
MB15F86UL
■ PHASE DETECTOR OUTPUT WAVEFORM
frIF/RF
fpIF/RF
tWU
tWL
LD
(FC bit = High)
H
DOIF/RF
Z
L
(FC bit = Low)
DOIF/RF
Z
LD Output Logic Table
IF-PLL section
RF-PLL section
LD output
Locking state/Power saving state
Locking state/Power saving state
H
Locking state/Power saving state
Unlocking state
L
Unlocking state
Locking state/Power saving state
L
Unlocking state
Unlocking state
L
Notes: • Phase error detection range = −2 π to +2 π
• Pulses on DoIF/RF signals are output to prevent dead zone.
• LD output becomes low when phase error is tWU or more.
• LD output becomes high when phase error is tWL or less and continues to be so for three cycles or more.
• tWU and tWL depend on OSCIN input frequency as follows.
tWU ≥ 2/fosc [s] : i.e. tWU ≥ 153.8 ns when fosc = 13.0 MHz
tWU ≤ 4/fosc [s] : i.e. tWL ≤ 307.7 ns when fosc = 13.0 MHz
15
MB15F86UL
■ TEST CIRCUIT (for Measuring Input Sensitivity fin/OSCIN)
fout
Oscilloscope
VpIF
0.1 µF
VCCIF
0.1 µF
1000 pF
1000 pF
P.G
1000 pF
P.G
50 Ω
LD/fout DOIF VpIF
50 Ω
10
9
8
PSIF VCCIF GNDIF XfinIF finIF GND OSCIN
7
6
5
4
3
2
1
17
18
19
20
MB15F86UL
11
1000 pF
12
13
14
15
16
DORF VpRF PSRF VCCRFGNDRF XfinRF finRF
LE
Data Clock
P.G
50 Ω
1000 pF
VpRF
VCCRF
0.1 µF
Note : TSSOP-20
16
0.1 µF
Controller (divide
ratio setting)
MB15F86UL
■ TYPICAL CHARACTERISTICS
1. fin input sensitivity
RF-PLL input sensitivity vs. Input frequency
Ta = + 25 °C
10
PfinRF (dBm)
0
2.7 V
SPEC
−10
3.0 V
3.3 V
−20
3.6 V
SPEC
−30
−40
−50
0
500
1000
1500
2000
2500
3000
finRF (MHz)
IF-PLL input sensitivity vs. Input frequency
Ta = + 25 °C
10
0
2.7 V
PfinIF (dBm)
SPEC
3.0 V
−10
3.3 V
−20
3.6 V
−30
−40
−50
0
500
1000
1500
2000
finIF (MHz)
17
MB15F86UL
2. OSCIN input sensitivity
Input sensitivity vs. Input frequency
Ta = + 25 °C
Input sensitivity VOSC (dBm)
10
SPEC
0
−10
−20
−30
VCC = 2.7 V
VCC = 3.0 V
−40
VCC = 3.6 V
−50
SPEC
−60
0
20
40
60
80
100
120
140
160
180
200
Input frequency fOSC (MHz)
18
220
240
260
280
300
320
MB15F86UL
3. RF-PLL DO output current
• 1.5 mA mode
IDO-VDO
Ta = +25 ˚C
VCC = Vp = 3.0 V
Charge pump output current IDO (mA)
10.0
0
−10.0
3.0
0.0
Charge pump output voltage VDO (V)
• 6.0 mA mode
IDO-VDO
Ta = +25˚C
VCC = Vp = 3.0 V
Charge pump output current IDO (mA)
10.0
0
−10.0
0.0
3.0
Charge pump output voltage VDO (V)
19
MB15F86UL
4. IF-PLL Do output current
• 1.5 mA mode
Charge pump output current IDO (mA)
IDO-VDO
10.0
Ta = +25˚C
VCC = Vp = 3.0 V
0
−10.0
3.0
0.0
Charge pump output voltage VDO (V)
6.0 mA mode
IDO-VDO
Charge pump output current IDO (mA)
10.0
Ta = +25˚C
VCC = Vp = 3.0 V
0
−10.0
0.0
3.0
Charge pump output voltage VDO (V)
20
MB15F86UL
5. fin input impedance
finRF input impedance
4 : 17.994 Ω
−52.029 Ω
1.1765 pF
2 600.000 000 MHz
1 : 45.859 Ω
−188.77 Ω
1GHz
2 : 25.48 Ω
−103.67 Ω
1.7 GHz
3 : 22.152 Ω
−83.391 Ω
2 GHz
1
4
3
START 1000.000 000 MHz
2
STOP 2 600.000 000 MHz
finIF input impedance
4 : 29.164 Ω
−143.77 Ω
922.54 fF
1 200.000 000 MHz
1 : 926.38 Ω
−970.56 Ω
100 MHz
2 : 120.58 Ω
−429.81 Ω
400 MHz
3 : 45.984 Ω
−220.31 Ω
800 MHz
1
2
4
START 100.000 000 MHz
3
STOP 1 200.000 000 MHz
21
MB15F86UL
6. OSCIN input impedance
OSCIN input impedance
4 : 081.06 Ω
−1.0784 kΩ
1.4758 pF
100.000 000 MHz
1 : 15.032 kΩ
−10.537 kΩ
3 MHz
2 : 1.2688 kΩ
−5.2405 kΩ
20 MHz
4
3 : 352.88 Ω
−2.6899 kΩ
40 MHz
1
32
START 3.000 000 MHz
22
STOP 100.000 000 MHz
MB15F86UL
■ REFERENCE INFORMATION
(for Lock-up Time, Phase Noise and Reference Leakage)
Test Circuit
S.G.
OSC IN
LPF
DO
fin
fVCO = 1741.5 MHz
KV = 44 MHz/V
fr = 30 kHz
fOSC = 19.44 MHz
LPF
VCC = 3.0 V
VVCO = 3.5 V
Ta = +25 °C
CP : 6 mA mode
13 kΩ
Spectrum
Analyzer
VCO
2200 pF
2.4 kΩ
680 pF
0.018 µF
• PLL Reference Leakage
ATTEN 10 dB
RL 0 dBm
D
S
VAVG 67
10 dB/
∆MKR −72.16 dB
30.0 kHz
∆MKR
30.0 kHz
−72.16 dB
CENTER 1.7415000 GHz
RBW 1.0 kHz
VBW 1.0 kHz
SPAN 200.0 MHz
SWP 500 ms
• PLL Phase Noise
ATTEN 10 dB
RL 0 dBm
D
S
VAVG 32
10 dB/
∆MKR −57.34 dB
1.00 kHz
∆MKR
1.00 kHz
−57.34 dB
CENTER 1.74150012 GHz
RBW 100 Hz
VBW 100 Hz
SPAN 10.00 kHz
SWP 802 ms
(Continued)
23
MB15F86UL
(Continued)
• PLL Lock Up time
1741.5 MHz→1801.5 MHz within ± 1 kHz
Lch→Hch
844 µs
1.801504750 GHz
1.801500750 GHz
1.801496750 GHz
−5000 ms
466 ps
1.000 ms/div
5.000 ms
• PLL Lock Up time
1801.5 MHz→1741.5 MHz within ± 1 kHz
Hch→Lch
889 µs
1.741504250 GHz
1.741500250 GHz
1.741496250 GHz
−5.000 ms
24
466 ps
1.000 ms/div
5.000 ms
MB15F86UL
■ APPLICATION EXAMPLE
VCO
OUTPUT
from controller
LPF
3.0 V
1000 pF
3.0 V
0.1 µF
0.1 µF
1000 pF
Clock
DATA
LE
finRF
XfinRF
GNDRF
VCCRF
PSRF
VpRF
DORF
20
19
18
17
16
15
14
13
12
11
MB15F86UL
1
2
3
4
5
6
7
8
9
10
OSCIN
GND
finIF
XfinIF
GNDIF
VCCIF
PSIF
VpIF
DOIF
LD/fout
1000 pF
1000 pF
3.0 V
1000 pF
0.1 µF
3.0 V
Lock Det.
0.1 µF
TCXO
OUTPUT
VCO
LPF
Notes:• Schmit trigger circuit is provided (insert a pull-up or pull-down resistor to prevent oscillation
when open-circuited in the input) .
• TSSOP-20
■ ORDERING INFORMATION
Part Number
Package
MB15F86ULPFT
20-pin plastic TSSOP
(FPT-20P-M06)
MB15F86ULPVA
20-pad plastic BCC
(LCC-20P-M05)
Remark
25
MB15F86UL
■ PACKAGE DIMENSIONS
20-pin Plastic TSSOP
(FPT-20P-M06)
* : These dimensions do not include resin protrusion.
* 6.50±0.10(.256±.004)
0.17±0.05
(.007±.002)
11
20
* 4.40±0.10
6.40±0.20
(.173±.004) (.252±.008)
INDEX
Details of "A" part
1.05±0.05
(Mounting height)
(.041±.002)
LEAD No.
1
10
0.65(.026)
"A"
0.24±0.08
(.009±.003)
0.13(.005)
M
0~8°
+0.03
(0.50(.020))
0.10(.004)
C
0.45/0.75
(.018/.030)
+.001
0.07 –0.07 .003 –.003
(Stand off)
0.25(.010)
1999 FUJITSU LIMITED F20026S-2C-2
Dimensions in mm (inches)
(Continued)
26
MB15F86UL
(Continued)
20-pad plastic BCC
(LCC-20P-M05)
3.00(.118)TYP
3.60±0.10(.142±.004)
16
0.55±0.05
(.022±.002)
(Mounting height)
11
11
0.25±0.10
(.010±.004)
16
0.50(.020)
TYP
0.25±0.10
(.010±.004)
INDEX AREA
3.40±0.10
(.134±.004)
2.70(.106)
TYP
"D"
"A"
1
6
"C"
6
Details of "A" part
0.50±0.10
(.020±.004)
1
0.50(.020)
TYP
2.80(.110)REF
0.075±0.025
(.003±.001)
(Stand off)
0.05(.002)
"B"
Details of "B" part
0.50±0.10
(.020±.004)
Details of "C" part
Details of "D" part
0.50±0.10
(.020±.004)
0.30±0.10
(.012±.004)
C0.20(.008)
0.60±0.10
(.024±.004)
C
0.30±0.10
(.012±.004)
0.60±0.10
(.024±.004)
0.40±0.10
(.016±.004)
2001 FUJITSU LIMITED C20056S-c-2-1
Dimensions in mm (inches)
27
MB15F86UL
FUJITSU LIMITED
All Rights Reserved.
The contents of this document are subject to change without notice.
Customers are advised to consult with FUJITSU sales
representatives before ordering.
The information and circuit diagrams in this document are
presented as examples of semiconductor device applications, and
are not intended to be incorporated in devices for actual use. Also,
FUJITSU is unable to assume responsibility for infringement of
any patent rights or other rights of third parties arising from the use
of this information or circuit diagrams.
The products described in this document are designed, developed
and manufactured as contemplated for general use, including
without limitation, ordinary industrial use, general office use,
personal use, and household use, but are not designed, developed
and manufactured as contemplated (1) for use accompanying fatal
risks or dangers that, unless extremely high safety is secured, could
have a serious effect to the public, and could lead directly to death,
personal injury, severe physical damage or other loss (i.e., nuclear
reaction control in nuclear facility, aircraft flight control, air traffic
control, mass transport control, medical life support system, missile
launch control in weapon system), or (2) for use requiring
extremely high reliability (i.e., submersible repeater and artificial
satellite).
Please note that Fujitsu will not be liable against you and/or any
third party for any claims or damages arising in connection with
above-mentioned uses of the products.
Any semiconductor devices have an inherent chance of failure. You
must protect against injury, damage or loss from such failures by
incorporating safety design measures into your facility and
equipment such as redundancy, fire protection, and prevention of
over-current levels and other abnormal operating conditions.
If any products described in this document represent goods or
technologies subject to certain restrictions on export under the
Foreign Exchange and Foreign Trade Law of Japan, the prior
authorization by Japanese government will be required for export
of those products from Japan.
F0111
 FUJITSU LIMITED Printed in Japan