TA8552AFN
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA8552AFN
PLL Data Synchronizer For DAT Streamer
The TA8552AFN is PLL data synchronizer for digital audio tape
(DAT) strteamer, digital data storage (DDS).
Features
·
The TA8552AFN incorporates edge detector, data
synchronizer, and latch for data separator.
Also the TA8552AFN is available to correspond to ×1, ×2 and
×3 of data transfer rates by adjusting external devices.
The data synchronizer is avalable to correspond to ±7%
variation of data transfer rate.
By employing full differential signal processing in PLL loop,
the TA8552AFN eliminates the influence of external noise.
Fast & stable locking is realized by switching between the frequency
detective mode and the phase detective mode.
Operating power supply voltage range: 4.5V to 5.5V
Small package; SSOP30−P−300−0.65
NC
RVCO1
AGND2
CVCO1
RVCO2
CVCO2
AVCC2
TMON1
TMON2
XTMON2
V
TTLO
MODESEL
TSTCPMP
RD
XRD
·
·
Weight: 0.17g (typ.)
Pin Connectoion
Top view
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
COB
COA
AGND1
RCP2
RCP1
AVCC1
DETSEL
TSTCLK
DVCC3
PBDT
PBCK
DGND3
TSTSEL2
REFCLK
TSTSEL1
·
·
Handle with care to prevent devices from deterioration by static electricity.
1
2002-10-30
TA8552AFN
Block Diagram
DETSEL MODESEL RCP1 RCP2
REFCLK
Frequency
detecter
Edge
detecter
Detecter
selector
Phase
detecter
Selecter
1 / 2 counter
Charge
−
pump
COA
RD
XRD
ECL / TTL
VCO
COB
Delay (2)
D
Q
PBCK
PBDT TSTCLK TSTSEL1 RVCO1 RVCO2 CVCO1 CVCO2
TSTSEL2
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2002-10-30
TA8552AFN
Pin Function
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Pin Name
NC
RVCO1
AGND2
CVCO1
RVCO2
CVCO2
AVCC2
TMON1
TMON2
XTMON2
V_TTLO
MODESEL
TSTCPMP
RD
Function
NC terminal. (open at normal use)
VCO adjusting terminal. Connect an external resistor (R
VCO1
)
between V
CC
.
Analog ground for VCO.
VCO adjusting terminal. Connect a capacitor (C
VCO
) between this
pin and pin6.
VCO adjusting terminal. Connect an external resistor (R
VCO2
)
between V
CC
.
VCO adjusting terminal. Connect a capacitor (C
VCO
) between this
pin and pin4.
Analog power supply voltage for VCO.
NC terminal (open at normal use)
NC terminal (open at normal use)
NC terminal (open at normal use)
Input terminal for TTL voh (high voltage level of pin20, and
pin21 output) limitting.
Input terminal for switching the normal mode and the serching mode.
(H: Normal mode, L: Serching mode)
NC terminal. (open at normal use.)
Input terminal of data (normal phase)
Input terminal of data (reverse phase).
(this terminal is active when TSTSEL1 = L and TSTSEL2 = H.
Otherelse, short with V
CC
.)
Input terminal for test mode selecting. (refer the chapter of "test mode")
Reference clock input of frequency synchronizer.
Input terminal for test mode selecting. (refer the chapter of "test mode")
Digital ground for TTL output.
Output terminal of data latch clock.
Output terminal of data latch.
Digital power supply voltage for TTL output.
Input terminal of ×1 / 2 vco test clock.
(short with V
CC
at mormal use.)
Input terminal for switching the frequency detective mode and the phase
detective mode.
(L : The frequency detective mode
H : The phase detective mode.)
Analog power supply voltage.
In / Out
―
―
―
―
―
―
―
―
―
―
―
TTL-in
―
ECL-in or
TTL-in
(ECL-in)
―
TTL-in
―
―
TTL-out
TTL-out
―
―
15
16
17
18
19
20
21
22
23
XRD
TSTSEL1
REFCLK
TSTSEL2
DGND3
PBCK
PBDT
DVCC3
TSTCLK
24
DETSEL
TTL-in
25
AVCC1
―
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2002-10-30
TA8552AFN
Pin No.
26
27
28
29
30
Pin Name
RCP1
RCP2
AGND1
COA
COB
Function
Adjusting terminal of charge pump at normal mode.
Connect an external resistor (R
cp1
) between GND.
Adjusting terminal of charge pump at normal mode.
Connect an external resistor (R
cp2
) between GND.
Analog ground
Connecting terminal of loop filter. Connect an external loop filter between
this pin and 30pin.
Connecting terminal of loop filter. Connect an external loop filter between
this pin and 29pin.
In / Out
―
―
―
―
―
Absolute Maximum Rating
(Ta = 27°C)
Parameter
Supply voltage
Input voltage
Output voltage
Storage temperature
Symbol
AVCC
V
IN
V
OUT
T
stg
Rating
7
-0.3~V
CC
+0.3
-0.3~V
CC
+0.3
−55~150
Unit
V
V
V
°C
Recommended Operating Condition
Parameter
Supply voltage
Operation temperature
Symbol
AVCC
T
opr
Condition
―
―
Min.
4.5
-5
Typ.
5
―
Max.
5.5
75
Unit
V
°C
Power Supply
(unless otherwise specifide, Ta = 27°C, V
CC
= 5.0V)
Parameter
Supply current
Symbol
IPLCC
Condition
TSTSEL1 = H, TSTSEL2 = L
DETSEL = L, MODSEL = H
Min.
Typ.
Max.
65
Unit
mA
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2002-10-30
TA8552AFN
Electrical Characteristic
(unless otherwise specified, Ta = 27
°
C, V
CC
= 5.0V)
Parameter
High level input voltage (1)
Low level input voltage (1)
High level input current (1)
Low level input current (1)
High level input voltage (2)
Low level input voltage (2)
High level input current (2)
Low level input current (2)
High level output voltage (1)
Low level output voltage (1)
Output rise time (1)
Output fall time (1)
Input voltage range to VTTLO
terminal
Symbol
V
IH
V
IL
I
IH
I
IL
VIHE
VILE
IIHE
IILE
V
OH
V
OL
TOR
TOF
VTTLO
Test
Circuit
―
―
―
―
―
―
―
―
―
―
―
―
―
Test Condition
TTL input pins
TTL input pins
TTL input pins
TTL input pins
ECL input pins
ECL input pins
ECL input pins
ECL input pins
TTL output pins
I
OH
= 400µA
TTL output pins
I
OL
= 4mA
TTL output pins 1.5V to 3.5V
C
L
≤30pF
TTL output pins 3.5V to 1.5V
C
L
≤30pF
*1
*1
Min.
2.0
―
―
―
V
CC
-1.0
―
―
―
VTTLO
-0.2
―
―
―
2.7
―
―
―
―
Typ.
―
―
―
―
―
―
―
―
Max.
―
0.4
20
-360
―
V
CC
-1.5
2.0
1.6
VTTLO
+0.2
1.0
5
5
3.3
Unit
V
V
µA
µA
V
V
mA
mA
V
V
ns
ns
V
*1; Design guaranteed value.
Charge Pump
(unless otherwise specified, Ta = 27°C, V
CC
= 5.0V)
Parameter
Range of output current setting
Accuracy of output current
setting
Leak current
Symbol
I
CP
Test
Circuit
―
―
―
―
Condition
At normal mode
At serching mode
At normal mode
At serching mode
Between COA pin and COB pin,
at high impedance
*1
*2
Min.
30
―
-6
-8
-3.5
Typ.
―
―
―
―
Max.
―
800
+6
+8
+3.5
Unit
µA
I
acu
I
reak
%
µA
*1; Output current is set by an external resistor (R
cp1
), as following;
2×1.3 / R
cp1
= (output current at normal mode).
*2; Output current is set by external resisters (R
cp1
, R
cp2
), as following;
2×1.3 / R
cp1
+8×1.3 / R
cp2
= (output current at search mode).
(Note) The above values are all at open loop.
5
2002-10-30
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