PCA2001U/10AA [NXP]
IC STEPPING MOTOR WATCH, UUC8, DIE-8, Clock IC;
| 型号： | PCA2001U/10AA |
| 厂家： | 
NXP |
| 描述： | IC STEPPING MOTOR WATCH, UUC8, DIE-8, Clock IC 电池 商用集成电路 智能腕表 振荡器 |
| 文件： | 总23页 (文件大小：115K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PCA2000; PCA2001
32 kHz watch circuit with programmable adaptive motor pulse
Rev. 04 — 8 September 2005
Product data sheet
1. General description
The PCA2000; PCA2001 are CMOS integrated circuits for battery operated wrist watches
with a 32 kHz quartz crystal as timing element and a bipolar 1 Hz stepping motor. The
quartz crystal oscillator and the frequency divider are optimized for minimum power
consumption. A timing accuracy of 1 ppm is achieved with a programmable, digital
frequency adjustment.
To obtain the minimum overall power consumption for the watch, an automatic motor
pulse adaptation function is provided. The circuit supplies only the minimum drive current,
which is necessary to ensure a correct motor step. Changing the drive current of the
motor is achieved by chopping the motor pulse with a variable duty cycle. The pulse width
and the range of the variable duty cycle can be programmed to suit different types of
motor. The automatic pulse adaptation scheme is based on a safe dynamic detection of
successful motor steps.
A pad RESET is provided (used for stopping the motor) for accurate time setting and for
accelerated testing of the watch.
The PCA2000 has a battery End Of Life (EOL) warning function. If the battery voltage
drops below the EOL threshold voltage (which can be programmed for silver oxide or
lithium batteries), the motor steps change from one pulse per second to a burst of four
pulses every 4 seconds.
The PCA2001 uses the same circuit as the PCA2000, but without the EOL function.
2. Features
■ Amplitude-regulated 32 kHz quartz crystal oscillator, with excellent frequency stability
and high immunity to leakage currents
■ Electrically programmable time calibration with 1 ppm resolution stored in One Time
Programmable (OTP) memory
■ The quartz crystal is the only external component connected
■ Very low power consumption, typical 90 nA
■ One second output pulses for bipolar stepping motor
■ Minimum power consumption for the entire watch, due to self adaptation of the motor
drive according to the required torque
■ Reliable step detection circuit
■ Motor pulse width, pulse modulation, and pulse adaptation range programmable in a
wide range, stored in OTP memory
■ Stop function for accurate time setting and power saving during shelf life
PCA2000; PCA2001
Philips Semiconductors
32 kHz watch circuit with programmable adaptive motor pulse
■ End Of Life (EOL) indication for silver oxide or lithium battery (only the PCA2000 has
the EOL feature)
■ Test mode for accelerated testing of the mechanical parts and the IC
■ Test bits for type recognition (version B)
3. Applications
■ Driver circuits for bipolar stepping motors
■ High immunity motor drive circuits
4. Ordering information
Table 1:
Ordering information
Type number
Package
Name
Description
Version
PCA2000U/AA
PCA2001U/AA
PCA2000U/AB
PCA2001U/AB
PCA2000U/10AA
PCA2001U/10AA
PCA2000U/10AB
PCA2001U/10AB
-
-
-
-
-
-
-
-
bare die; chip in tray
-
bare die; chip in tray
-
bare die; chip in tray
B
B
-
bare die; chip in tray
bare die; chip on film frame carrier
bare die; chip on film frame carrier
bare die; chip on film frame carrier
bare die; chip on film frame carrier
-
B
B
9397 750 14618
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 04 — 8 September 2005
2 of 23
PCA2000; PCA2001
Philips Semiconductors
32 kHz watch circuit with programmable adaptive motor pulse
5. Block diagram
32 Hz
8 kHz
3
4
OSCIN
8
OSCILLATOR
DIVIDER
RESET
reset
÷4
RESET
OSCOUT
TIMING ADJUSTMENT,
INHIBITION
5
1
V
DD
VOLTAGE DETECTOR,
OTP-CONTROLLER
1 Hz
OTP-MEMORY
V
SS
MOTOR CONTROL WITH
ADAPTIVE PULSE MODULATION
EOL
PCA2000 only
2
STEP
DETECTION
TEST
PCA2000
PCA2001
6
7
mgw567
MOT1
MOT2
Fig 1. Block diagram
6. Pinning information
6.1 Pinning
V
1
2
8
7
RESET
MOT2
SS
TEST
PCA2000
PCA2001
MOT1
OSCIN
3
4
6
OSCOUT
V
5
DD
mgu554
Fig 2. Pad configuration
9397 750 14618
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 04 — 8 September 2005
3 of 23
PCA2000; PCA2001
Philips Semiconductors
32 kHz watch circuit with programmable adaptive motor pulse
6.2 Pin description
Table 2:
Symbol
VSS
Pin description
Pin
1
Description
ground
TEST
2
test output
OSCIN
OSCOUT
VDD
3
oscillator input
oscillator output
supply voltage
motor 1 output
motor 2 output
reset input
4
5
MOT1
MOT2
RESET
6
7
8
7. Functional description
7.1 Motor pulse
The motor output supplies pulses of different driving stages, depending on the torque
required to turn on the motor. The number of different stages can be selected between
three and six. With the exception of the highest driving stage, each motor pulse (tp in
Figure 3 and Figure 6) is followed by a detection phase during which the motor movement
is monitored, in order to check whether the motor has turned correctly or not.
1.96 ms
t
t
2t
p
detection phase
p
p
mgw350
0.98 ms
31.25 ms
31.25 ms
Fig 3. Correction sequence after failed motor step
If a missing step is detected, a correction sequence is generated (see Figure 3) and the
driving stage is switched to the next level. The correction sequence consists of two pulses:
first a short pulse in the opposite direction (0.98 ms, modulated with the maximum duty
cycle) to give the motor a defined position, followed by a motor pulse of the strongest
driving level. Every 4 minutes, the driving level is lowered again by one stage.
The motor pulse has a constant pulse width. The driving level is regulated by chopping the
driving pulse with a variable duty cycle. The driving level starts from the programmed
minimum value and increases by 6.25 % after each failed motor step. The strongest
driving stage, which is not followed by a detection phase, is programmed separately.
9397 750 14618
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 04 — 8 September 2005
4 of 23
PCA2000; PCA2001
Philips Semiconductors
32 kHz watch circuit with programmable adaptive motor pulse
Therefore, it is possible to program a larger energy gap between the pulses with step
detection and the strongest, not monitored, pulse. This might be necessary to ensure a
reliable and stable operation under adverse conditions (magnetic fields and vibrations). If
the watch works in the highest driving stage, the driving level jumps after the 4-minute
period directly to the lowest stage, and not just one stage lower.
To optimize the performance for different motors, the following parameters can be
programmed:
• Pulse width: 0.98 ms to 7.8 ms in steps of 0.98 ms
• Duty cycle of lowest driving level: 37.5 % to 56.25 % in steps of 6.25 %
• Number of driving levels (including the highest driving level): 3 to 6
• Duty cycle of the highest driving level: 75 % or 100 %
• Enlargement pulse for the highest driving level: on or off
The enlargement pulse has a duty cycle of 25 % and a pulse width which is twice the
programmed motor pulse width. The repetition period for the chopping pattern is 0.98 ms.
Figure 4 shows an example of a 3.9 ms pulse.
0.244 ms
0.122 ms
DUTY CYCLE
37.5 %
43.75 %
50 %
56.25 %
62.5 %
68.75 %
75 %
81.25 %
100 %
mgw351
0.98 ms
0.98 ms
0.98 ms
0.98 ms
Fig 4. Possible modulations for a 3.9 ms motor pulse
9397 750 14618
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 04 — 8 September 2005
5 of 23
PCA2000; PCA2001
Philips Semiconductors
32 kHz watch circuit with programmable adaptive motor pulse
7.2 Step detection
Figure 5 shows a simplified diagram of the motor driving and step detection circuit, and
Figure 6 shows the step detection sequence and corresponding sampling current.
Between the motor driving pulses, the switches P1 and P2 are closed, which means the
motor is short-circuited. For a pulse in one direction, P1 and N2 are open, and P2 and N1
are closed with the appropriate duty cycle; for a pulse in the opposite direction, P2 and N1
are open, and P1 and N2 closed.
V
DD
R
D
D1
P2
N2
P1
N1
P3
MOTOR
P4
MOT1
MOT2
V
SS
mgw352
Fig 5. Simplified diagram of motor driving and step detection circuit
The step detection phase is initiated after the motor driving pulse (see Figure 3). P1 and
P2 are first closed for 0.98 ms and then all four drive switches (P1, N1, P2 and N2) are
opened for 0.98 ms.
As a result, the energy stored in the motor inductance is reduced as fast as possible.
The induced current caused by the residual motor movement is then sampled in phase 3
(closing P3 and P2) and in phase 4 (closing P1 and P4). For step detection in the opposite
direction P1 and P4 are closed during phase 3 and P2 and P3 during phase 4 (see
Figure 6).
9397 750 14618
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 04 — 8 September 2005
6 of 23
PCA2000; PCA2001
Philips Semiconductors
32 kHz watch circuit with programmable adaptive motor pulse
I
MOT
positive detection level
t
negative detection level
t
p
0.98 ms
(motor shorted)
programmable time limit
t
= 0.98 ms
sampling
OTP C4 to C6
d
sampling
voltage
t
t
sampling
voltage
positive detection
motor shorted
negative detection
sampling results
sampling
mgw569
61 µs
0.49 ms
Fig 6. Step detection sequence and corresponding sampling voltage
The condition for a successful motor step is a positive step detection pulse (current in the
same direction as in the driving phase) followed by a negative detection pulse within a
given time limit. This time limit can be programmed between 3.9 ms and 10.7 ms (in steps
of 0.98 ms) in order to ensure a safe and correct step detection under all conditions (for
instance magnetic fields). The step detection phase stops after the last 31.25 ms, after the
start of the motor driving pulse.
7.3 Time calibration
The quartz crystal oscillator has an integrated capacitance of 5.2 pF, which is lower than
the specified capacitance (CL) of 8.2 pF for the quartz crystal. Therefore, the oscillator
frequency is typically 60 ppm higher than 32.768 kHz. This positive frequency offset is
compensated by removing the appropriate number of 8192 Hz pulses in the divider chain
(maximum 127 pulses), every 1 or 2 minutes. The time correction is given in Table 3.
Table 3:
Time calibration
Correction per step (n = 1)
Calibration
period
Correction per step (n = 127)
seconds per day ppm seconds per day
22.3
11.15
ppm
2.03
1 minute
0.176
0.088
258
129
2 minutes
1.017
After measuring the effective oscillator frequency, the number of correction pulses must
be calculated and stored together with the calibration period in the OTP memory (see
Section 7.7).
9397 750 14618
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 04 — 8 September 2005
7 of 23
PCA2000; PCA2001
Philips Semiconductors
32 kHz watch circuit with programmable adaptive motor pulse
The oscillator frequency can be measured at pad RESET, where a square wave signal
1
1024
with the frequency of
× f
is provided.
-----------
osc
This frequency shows a jitter every minute or every two minutes, depending on the
programmed calibration period, which originates from the time calibration.
Details on how to measure the oscillator frequency and the programmed inhibit time are
given in Section 7.11.
7.4 Reset
1
At pad RESET an output signal with a frequency of
× f
= 32 Hz is provided.
osc
-----------
1024
Connecting pad RESET to VDD stops the motor drive and opens all four (P1, N1, P2 and
N2) driver switches (see Figure 5). Connecting pad RESET to VSS activates the Test
mode. In this mode the motor output frequency is 32 Hz, which can be used to test the
mechanical function of the watch.
After releasing the pad RESET, the motor starts exactly one second later with the smallest
duty cycle and with the opposite polarity to the last pulse before stopping.
The debounce time for the RESET function is between 31 ms and 62 ms.
7.5 Programming possibilities
The programming data is stored in OTP cells (EPROM cells). At delivery, all memory cells
are in State 0. The cells can be programmed to the State 1, but then there is no more set
back to State 0.
The programming data is organized in an array of four 8-bit words: word A contains the
time calibration, words B and C contain the setting for the monitor pulses and word D
contains the type recognition (see Table 4).
Table 4:
Word
Words and bits
Bit
1
2
3
4
5
6
7
8
A
B
number of 8192 Hz pulses to be removed
calibration
period
lowest stage:
duty cycle
number of driving
stages
highest stage:
duty cycle and
stretching
factory test bits
C
D
pulse width
type
maximum time delay between EOL
factorytest
positive and negative
detection pulses
voltage bit
factory test bits
9397 750 14618
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 04 — 8 September 2005
8 of 23
PCA2000; PCA2001
Philips Semiconductors
32 kHz watch circuit with programmable adaptive motor pulse
Table 5:
Bit
Description of word A bits
Value
Description
Inhibit time
1 to 7
-
adjust the number of the
8192 Hz pulses to be removed;
bit 1 is the MSB and bit 7 is the
LSB
Calibration period
8
0
1
1 minute
2 minutes
Table 6:
Bit
Description of word B bits
Value
Description
Duty cycle lowest driving stage
1 to 2
00
37.5 %
43.75 %
50 %
01
10
11
56.25 %
Number of driving stages
3 to 4
00
01
10
11
3
4
5
6[1]
Duty cycle highest driving stage
5
0
1
75 %[2]
100 %
Stretching pulse
6
0
1
pulse is not stretched
pulse of 2tpr and duty cycle of
25 % is added
Factory test bits
7 to 8
-
[1] Including the highest driving stage, which one has no motor step detection.
[2] If the maximum duty cycle of 75 % is selected, not all programming combinations are possible since the
second highest level must be smaller than the highest driving level.
9397 750 14618
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 04 — 8 September 2005
9 of 23
PCA2000; PCA2001
Philips Semiconductors
32 kHz watch circuit with programmable adaptive motor pulse
Table 7:
Bit
Description of word C bits
Value
Description
Pulse width tpr (ms)
1 to 3
000
001
010
011
100
101
110
111
0.98
1.95
2.90
3.90
4.90
5.90
6.80
7.80
Time delay tmax (ms)[1]
4 to 6
000
001
010
011
100
101
110
111
3.91
4.88
5.86
6.84
7.81
8.79
9.77
10.74
EOL voltage of the battery
7
0
1
1.38 V (silver-oxide)
2.5 V (lithium)
Factory test bit
8
-
[1] Between positive and negative detection pulses.
7.5.1 Type recognition (version B only)
Byte D is read to determine which type of the PCA200X family is used in a particular
application.
Table 8:
Bit
Description of word D bits
Value
Description
Type recognition
1 to 4
0000
1000
0100
PCA2002
PCA2000
PCA2001
9397 750 14618
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 04 — 8 September 2005
10 of 23
PCA2000; PCA2001
Philips Semiconductors
32 kHz watch circuit with programmable adaptive motor pulse
7.6 Programming procedure
For a watch it is essential that the timing calibration can be made after the watch is fully
assembled. In this situation, the supply pads are often the only terminals which are still
accessible.
Writing to the OTP cells and performing the related functional checks is achieved in the
PCA2000; PCA2001 by modulating the supply voltage. The necessary control circuit
consists basically of a voltage level detector, an instruction counter which determines the
function to be performed, and an 8-bit shift register which allows writing to the OTP cells of
an 8-bit word in one step and acts as a data pointer for checking the OTP content.
There are five different instruction states (State 3 and State 5 are handled as State 4):
• State 1: measurement of the quartz crystal oscillator frequency (divided by 1024)
• State 2: measurement of the inhibit time
• State 3: write/check word A
• State 4: write/check word B
• State 5: write/check word C
• State 6: check word D (type recognition)
Each instruction state is switched on with a pulse to VP (6.7 V). After this large pulse, an
initial waiting time of t0 (20 ms) is required. The programming instructions are then
entered by modulating the supply voltage with small pulses (amplitude VP(mod) = 0.35 V
and pulse width tmod = 30 µs). The first small pulse defines the start time, the following
pulses perform three different functions, depending on the delay from the preceding pulse
(see Figure 7, Figure 8, Figure 11, and Figure 12):
• t1 = 0.7 ms: increments the instruction counter
• t2 = 1.7 ms: clocks the shift register with data = logic 0
• t3 = 2.7 ms: clocks the shift register with data = logic 1
The programming procedure requires a stable oscillator. This means that a waiting time,
determined by the start-up time of the oscillator is necessary after power-up of the circuit.
After the VP(start) pulse, the instruction counter is in State 1 and the data shift register is
cleared.
The instruction state ends with a second pulse to VP(stop) or with a pulse to Vstore
.
In any case, the instruction states are terminated automatically 2 seconds after the last
VDD(mod) pulse.
7.7 Programming the memory cells
Applying the two-stage programming pulse (see Figure 7) transfers the stored data in the
shift register to the OTP cells.
Perform the following to program a memory word:
1. Starting with a VP(start) pulse wait for the time period t0 then set the instruction counter
to the word you want to write (td = t1).
9397 750 14618
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 04 — 8 September 2005
11 of 23
PCA2000; PCA2001
Philips Semiconductors
32 kHz watch circuit with programmable adaptive motor pulse
2. Enter the data you want to store in the shift register (td = t2 or t3). Enter the LSB first
(bit 8) and the MSB last (bit 1).
3. Apply the two-stage programming pulse (Vpre-store then Vstore) stores the word. The
delay between the last data bit and the pre-store pulse (Vpre-store) is td = t4.
The example shown in Figure 7 performs the following functions:
• Start
• Setting instruction counter to State 4 (word B)
• Entering data word 110101 into the shift register (sequence: first bit 6 and last bit 1)
• Writing to the OTP cells for word B
t
pre-store
V
DD(mod)
V
store
t
p(start)
V
V
P(start)
V
pre-store
t
t
t
t
t
t
t
t
t
t
t
t
store
0
1
1
1
3
2
3
2
3
3
4
P(mod)
V
DD
V
SS
mgw356
Fig 7. Supply voltage modulation for programming
7.8 General start-up sequence
You must follow the sequence below to ensure the correct operation at start-up:
1. Apply the supply voltage to the circuit
2. Wait for at least 2 seconds
3. Connect the pad RESET to VDD for a minimum of 62 ms (this activates the Stop
mode)
4. Disconnect the pad RESET from VDD (this resets the circuit to normal operating
mode)
After this sequence the memory contents are read immediately and the programmed
options are set. This sequence also resets all major circuit blocks and ensures that they
function correctly.
Version B does not require the above sequence.
9397 750 14618
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 04 — 8 September 2005
12 of 23
PCA2000; PCA2001
Philips Semiconductors
32 kHz watch circuit with programmable adaptive motor pulse
7.9 Checking memory content
The stored data of the OTP array can be checked bit wise by measuring the supply
current. The array word is selected by the instruction state and the bit is addressed by the
shift register.
To read a word, the word is first selected (pulse distance t1), and a logic 1 is written into
the first cell of the shift register (pulse distance t3). This logic 1 is then shifted through the
entire shift register (pulse distance t2), so that it points with each clock pulse to the next
bit.
If the addressed OTP cell contains a logic 1, a 30 kΩ resistor is connected between VDD
and VSS, which increases the supply current accordingly.
Figure 8 shows the supply voltage modulation for reading word B, with the corresponding
supply current variation for word B = 110101 (sequence: first MSB and last LSB).
V
DD(mod)
t
p(start)
t
p(stop)
V
P(start)
V
P(stop)
t
t
t
t
t
t
t
t
t
t
2
0
1
1
1
3
2
2
2
2
V
P(mod)
V
DD
V
SS
I
DD
(1)
mgw357
VDD
(1) ∆IDD
=
---------------
30 kΩ
Fig 8. Supply voltage modulation and corresponding supply current variation for reading
word B
9397 750 14618
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 04 — 8 September 2005
13 of 23
PCA2000; PCA2001
Philips Semiconductors
32 kHz watch circuit with programmable adaptive motor pulse
7.10 Frequency tuning of assembled watch
Figure 9 shows the test set-up for frequency tuning the assembled watch.
32 kHz
M
PCA200x
FREQUENCY
COUNTER
motor
PROGRAMMABLE
DC POWER SUPPLY
battery
PC INTERFACE
PC
mgw568
Fig 9. Frequency tuning at assembled watch
7.11 Measurement of oscillator frequency and inhibit time
The output of the two measuring states can either be monitored directly at pad RESET or
as a modulation of the supply voltage (a modulating resistor of 30 kΩ is connected
between VDD and VSS when the signal at pad RESET is at HIGH-level).
You must follow the supply voltage modulation (see Figure 10) in order to guarantee the
correct start-up of the circuit during production and testing.
V
DD
t
p(stop)
V
P(stop)
t
> 500 ms
(start)
V
DD(nom)
V
SS
001aac503
Fig 10. Supply voltage at start-up during production and testing
9397 750 14618
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 04 — 8 September 2005
14 of 23
PCA2000; PCA2001
Philips Semiconductors
32 kHz watch circuit with programmable adaptive motor pulse
Measuring states:
• State 1: quartz crystal oscillator frequency divided by 1024; State 1 starts with a pulse
to VP and ends with a second pulse to VP
• State 2: inhibit time (see Figure 11 and Figure 12); a signal with periodicity of
31.25 + n × 0.122 ms appears at pad RESET and as current modulation at pad VDD
.
31.25 ms + inhibition time
V
DD
V
SS
mgw355
Fig 11. Output waveform at pad RESET for instruction State 2
V
DD
t
t
p(stop)
p(start)
V
V
P(stop)
P(start)
t
t
1
0
V
P(mod)
V
DD(nom)
V
SS
mgu719
Fig 12. Supply voltage modulation for starting and stopping of instruction State 2
7.12 Customer testing
Connecting pad RESET to VSS activates the Test mode. In this Test mode, the motor
output frequency is 8 Hz; the duty cycle reduction and battery check occurs every second,
instead of every 4 minutes. If the supply voltage drops below the EOL threshold voltage,
the motor output frequency is 32 Hz with the highest driving level.
7.13 EOL of battery
The supply voltage is checked every 4 minutes. If it drops below the EOL reference
(1.38 V for silver-oxide, 2.5 V for lithium batteries), the motor steps change from one pulse
per second to a burst of four pulses every 4 seconds. The step detection is switched off,
and the motor is driven with the highest pulse level.
Only the PCA2000 has an EOL function.
9397 750 14618
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 04 — 8 September 2005
15 of 23
PCA2000; PCA2001
Philips Semiconductors
32 kHz watch circuit with programmable adaptive motor pulse
8. Limiting values
Table 9:
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
VDD
Parameter
Conditions
Min
Max
Unit
V
[1] [2]
supply voltage
VSS = 0 V
−1.8
+7.0
VI
all input voltages
V
SS − 0.5
VDD + 0.5
+60
V
Tamb
Tstg
ambient temperature
storage temperature
output short-circuit duration
−10
−30
-
°C
°C
s
+100
to(sc)
indefinite
[1] For writing to the OTP cells, the supply voltage VDD can be raised to a maximum of 12 V for a period of 1 second.
[2] Connecting the battery with reversed polarity does not destroy the circuit, but in this condition a large current flows, which rapidly
discharges the battery.
9. Characteristics
Table 10: Characteristics
VDD = 1.55 V; VSS = 0 V; fosc = 32.768 kHz; Tamb = 25 °C; quartz crystal: RS = 40 kΩ, C1 = 2 fF to 3 fF, CL = 8.2 pF; unless
otherwise specified.
Symbol
Supply
VDD
Parameter
Conditions
Min
Typ
Max
Unit
supply voltage
normal operating mode;
1.10
1.55
3.60
V
T
amb = −10 °C to +60 °C
∆VDD
supply voltage variation ∆V/∆t = 1 V/µs
-
-
-
-
0.25
120
180
V
IDD
supply current
between motor pulses
90
120
nA
nA
between motor pulses at
VDD = 3.5 V
Tamb = −10 °C to +60 °C
-
-
-
200
135
nA
nA
Stop mode; pad RESET
connected to VDD
100
Motor output
[1]
Vsat
saturation voltage
RM = 2 kΩ; Tamb = −10 °C to
+60 °C
-
-
150
200
200
300
mV
Zsc
short-circuit impedance between motor pulses;
motor < 1 mA
Ω
I
Oscillator
Vstart
gm
starting voltage
transconductance
start-up time
1.1
5
-
-
V
V
OSCIN ≤ 50 mV (p-p)
10
-
µS
s
tosc
-
0.3
0.05
5.2
0.9
0.20
6.3
∆f/f
frequency stability
∆VDD = 100 mV
-
ppm
pF
Cint
integrated load
capacitance
4.3
Rpar
parasitic resistance
allowed resistance between
adjacent pads
20
-
-
MΩ
9397 750 14618
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 04 — 8 September 2005
16 of 23
PCA2000; PCA2001
Philips Semiconductors
32 kHz watch circuit with programmable adaptive motor pulse
Table 10: Characteristics …continued
VDD = 1.55 V; VSS = 0 V; fosc = 32.768 kHz; Tamb = 25 °C; quartz crystal: RS = 40 kΩ, C1 = 2 fF to 3 fF, CL = 8.2 pF; unless
otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Voltage level detector
Vth(EOL)
EOL threshold voltage silver-oxide battery
lithium battery
1.30
2.35
-
1.38
2.50
−0.07
1.46
2.65
-
V
V
TCEOL
Pad RESET
fo
temperature coefficient
%/°C
output frequency
-
32
-
-
Hz
V
[2]
[2]
∆Vo
output voltage swing
rise and fall time
RL = 1 MΩ; CL = 10 pF
RL = 1 MΩ; CL = 10 pF
pad RESET connected to
1.4
-
tr, tf
-
-
1
-
µs
nA
Ii(AV)
average input current
10
20
V
DD or VSS
[1] Σ (P + N).
[2] RL and CL are a load resistor and load capacitor, externally connected to pad RESET.
Table 11: Specifications for OTP programming
See Figure 7, Figure 8 and Figure 12.
Symbol
Parameter[1]
Conditions
Min
Typ
Max
Unit
VDD
supply voltage during
1.5
-
3.0
V
programming procedure
VP(start)
VP(stop)
VP(mod)
supply voltage for starting
programming procedure
6.6
6.2
320
-
6.8
6.4
380
V
supply voltage for stopping
programming procedure
-
V
supply voltage modulation for
entering instructions
350
mV
Vpre-store
Vstore
supply voltage for pre-store pulse
6.2
9.9
-
6.4
V
V
supply voltage for writing to the
OTP cells
10.0
10.1
Istore
supply current for writing to the
OTP cells
-
-
10
mA
tp(start)
tp(stop)
tmod
pulse width of start pulse
pulse width of stop pulse
modulation pulse width
8
10
-
12
ms
ms
µs
0.05
25
0.5
40
30
-
tpre-store
tstore
pulse width of pre-store pulse
0.05
95
0.5
110
ms
ms
pulse width for writing to the OTP
cells
100
t0
t1
waiting time after start pulse
20
-
30
ms
ms
pulse distance for incrementing
the state counter
0.6
0.7
0.8
t2
t3
pulse distance for clocking the
data register with data = logic 0
1.6
2.6
1.7
2.7
1.8
2.8
ms
ms
pulse distance for clocking the
data register with data = logic 1
9397 750 14618
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 04 — 8 September 2005
17 of 23
PCA2000; PCA2001
Philips Semiconductors
32 kHz watch circuit with programmable adaptive motor pulse
Table 11: Specifications for OTP programming …continued
See Figure 7, Figure 8 and Figure 12.
Symbol
Parameter[1]
Conditions
Min
Typ
Max
Unit
t4
waiting time for writing to OTP
cells
0.1
0.2
0.3
ms
SR
slew rate for modulation of the
supply voltage
0.5
18
-
5.0
45
V/µs
kΩ
Rread
supply current modulation
read-out resistor
30
[1] Program each word once only.
10. Bare die information
10.1 Bonding pad locations
Table 12: Bonding pad locations
Symbol
Pad
Coordinates [1]
x
y
[2]
VSS
1
2
3
4
5
6
7
8
−480
+330
+160
−160
−330
−330
−160
+160
+330
TEST[3]
OSCIN
OSCOUT
VDD
−480
−480
−480
+480
MOT1
+480
MOT2
+480
RESET
+480
[1] All coordinates are referenced, in µm, to the center of the die (see Figure 14).
[2] The substrate (rear side of the chip) is connected to VSS. Therefore the die pad must be either floating or
connected to VSS
[3] Pad TEST is used for factory tests; in normal operation it should be left open-circuit, and it has an internal
pull-down resistance to VSS
.
.
1.20 mm
V
1
2
8
7
RESET
MOT2
SS
y
TEST
x
0.90 mm
0
0
MOT1
OSCIN
3
4
6
OSCOUT
V
5
DD
mgw353
Fig 13. Bonding pad locations
9397 750 14618
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 04 — 8 September 2005
18 of 23
PCA2000; PCA2001
Philips Semiconductors
32 kHz watch circuit with programmable adaptive motor pulse
Table 13: Mechanical chip data[1]
Parameter
Bonding pad
metal
Value
96 µm × 96 µm
86 µm × 86 µm
opening
Thickness
chip for bonding
chip for golden bumps
Bumps
200 µm ± 25 µm
270 µm ± 25 µm
height
25 µm ± 5 µm
[1] The substrate of the chip is connected to VSS
.
10.2 Tray information
A
x
G
C
H
y
1,1 2,1 3,1
1,2 2,2
1,3
x,1
D
B
F
x,y
1,y
A
A
E
M
J
SECTION A-A
mgu653
Fig 14. Tray details
Table 14: Tray dimensions
Dimension
Description
Value
A
B
C
D
E
F
pocket pitch; x direction
pocket pitch; y direction
pocket width; x direction
pocket width; y direction
tray width; x direction
tray width; y direction
2.15 mm
2.43 mm
1.01 mm
1.39 mm
50.67 mm
50.67 mm
9397 750 14618
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 04 — 8 September 2005
19 of 23
PCA2000; PCA2001
Philips Semiconductors
32 kHz watch circuit with programmable adaptive motor pulse
Table 14: Tray dimensions …continued
Dimension
Description
Value
G
distance from cut corner to pocket (1, 1)
center
4.86 mm
H
distance from cut corner to pocket (1, 1)
center
4.66 mm
J
tray thickness
3.94 mm
0.61 mm
20
M
x
pocket depth
number of pockets in x direction
number of pockets in y direction
y
18
mgu652
The orientation of the IC in a pocket is indicated by the position of the IC type name on the
surface of the die, with respect to the cut corner on the upper left of the tray.
Fig 15. Tray alignment
11. Package outline
Not applicable.
12. Handling information
Inputs and outputs are protected against electrostatic discharge in normal handling.
However, to be completely safe you must take normal precautions appropriate to handling
MOS devices; see JESD625-A and/or IEC61340-5.
9397 750 14618
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 04 — 8 September 2005
20 of 23
PCA2000; PCA2001
Philips Semiconductors
32 kHz watch circuit with programmable adaptive motor pulse
13. Revision history
Table 15: Revision history
Document ID
Release date Data sheet status
20050908 Product data sheet
Change notice Doc. number
Supersedes
PCA2000_2001_4
Modifications:
-
9397 750 14618 PCA2000_2001_3
• The format of this data sheet has been redesigned to comply with the new presentation and
information standard of Philips Semiconductors.
• Version B added to data sheet
–
–
–
–
–
Section 2 “Features”: Added version B feature
Section 4 “Ordering information”: Added version B types
Section 7.5 “Programming possibilities” : Added Word D description for version B
Section 7.6 “Programming procedure”: Added word D remark for version B
Section 7.8 “General start-up sequence”: Added remark for version B
PCA2000_2001_3
PCA2000_2001_2
PCA2000_2001_1
20031217
20030204
20020517
Product data sheet
-
-
9397 750 11757 PCA2000_2001_2
9397 750 10184 PCA2000_2001_1
Objective specification
Preliminary specification -
9397 750 08568
-
9397 750 14618
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 04 — 8 September 2005
21 of 23
PCA2000; PCA2001
Philips Semiconductors
32 kHz watch circuit with programmable adaptive motor pulse
14. Data sheet status
Level Data sheet status[1] Product status[2] [3]
Definition
I
Objective data
Development
This data sheet contains data from the objective specification for product development. Philips
Semiconductors reserves the right to change the specification in any manner without notice.
II
Preliminary data
Qualification
This data sheet contains data from the preliminary specification. Supplementary data will be published
at a later date. Philips Semiconductors reserves the right to change the specification without notice, in
order to improve the design and supply the best possible product.
III
Product data
Production
This data sheet contains data from the product specification. Philips Semiconductors reserves the
right to make changes at any time in order to improve the design, manufacturing and supply. Relevant
changes will be communicated via a Customer Product/Process Change Notification (CPCN).
[1]
[2]
Please consult the most recently issued data sheet before initiating or completing a design.
The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at
URL http://www.semiconductors.philips.com.
[3]
For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status.
Right to make changes — Philips Semiconductors reserves the right to
15. Definitions
make changes in the products - including circuits, standard cells, and/or
software - described or contained herein in order to improve design and/or
performance. When the product is in full production (status ‘Production’),
relevant changes will be communicated via a Customer Product/Process
Change Notification (CPCN). Philips Semiconductors assumes no
responsibility or liability for the use of any of these products, conveys no
license or title under any patent, copyright, or mask work right to these
products, and makes no representations or warranties that these products are
free from patent, copyright, or mask work right infringement, unless otherwise
specified.
Short-form specification — The data in a short-form specification is
extracted from a full data sheet with the same type number and title. For
detailed information see the relevant data sheet or data handbook.
Limiting values definition — Limiting values given are in accordance with
the Absolute Maximum Rating System (IEC 60134). Stress above one or
more of the limiting values may cause permanent damage to the device.
These are stress ratings only and operation of the device at these or at any
other conditions above those given in the Characteristics sections of the
specification is not implied. Exposure to limiting values for extended periods
may affect device reliability.
Bare die — All die are tested and are guaranteed to comply with all data
sheet limits up to the point of wafer sawing for a period of ninety (90) days
from the date of Philips' delivery. If there are data sheet limits not guaranteed,
these will be separately indicated in the data sheet. There are no post
packing tests performed on individual die or wafer. Philips Semiconductors
has no control of third party procedures in the sawing, handling, packing or
assembly of the die. Accordingly, Philips Semiconductors assumes no liability
for device functionality or performance of the die or systems after third party
sawing, handling, packing or assembly of the die. It is the responsibility of the
customer to test and qualify their application in which the die is used.
Application information — Applications that are described herein for any
of these products are for illustrative purposes only. Philips Semiconductors
make no representation or warranty that such applications will be suitable for
the specified use without further testing or modification.
16. Disclaimers
Life support — These products are not designed for use in life support
appliances, devices, or systems where malfunction of these products can
reasonably be expected to result in personal injury. Philips Semiconductors
customers using or selling these products for use in such applications do so
at their own risk and agree to fully indemnify Philips Semiconductors for any
damages resulting from such application.
17. Trademarks
Notice — All referenced brands, product names, service names and
trademarks are the property of their respective owners.
18. Contact information
For additional information, please visit: http://www.semiconductors.philips.com
For sales office addresses, send an email to: sales.addresses@www.semiconductors.philips.com
9397 750 14618
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 04 — 8 September 2005
22 of 23
PCA2000; PCA2001
Philips Semiconductors
32 kHz watch circuit with programmable adaptive motor pulse
19. Contents
1
2
3
4
5
General description . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Ordering information. . . . . . . . . . . . . . . . . . . . . 2
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3
6
6.1
6.2
Pinning information. . . . . . . . . . . . . . . . . . . . . . 3
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4
7
Functional description . . . . . . . . . . . . . . . . . . . 4
Motor pulse. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Step detection. . . . . . . . . . . . . . . . . . . . . . . . . . 6
Time calibration . . . . . . . . . . . . . . . . . . . . . . . . 7
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Programming possibilities. . . . . . . . . . . . . . . . . 8
Type recognition (version B only) . . . . . . . . . . 10
Programming procedure. . . . . . . . . . . . . . . . . 11
Programming the memory cells . . . . . . . . . . . 11
General start-up sequence. . . . . . . . . . . . . . . 12
Checking memory content . . . . . . . . . . . . . . . 13
Frequency tuning of assembled watch . . . . . . 14
Measurement of oscillator frequency and inhibit
time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Customer testing. . . . . . . . . . . . . . . . . . . . . . . 15
EOL of battery . . . . . . . . . . . . . . . . . . . . . . . . 15
7.1
7.2
7.3
7.4
7.5
7.5.1
7.6
7.7
7.8
7.9
7.10
7.11
7.12
7.13
8
9
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 16
Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . 16
10
10.1
10.2
Bare die information . . . . . . . . . . . . . . . . . . . . 18
Bonding pad locations . . . . . . . . . . . . . . . . . . 18
Tray information . . . . . . . . . . . . . . . . . . . . . . . 19
11
12
13
14
15
16
17
18
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 20
Handling information. . . . . . . . . . . . . . . . . . . . 20
Revision history. . . . . . . . . . . . . . . . . . . . . . . . 21
Data sheet status . . . . . . . . . . . . . . . . . . . . . . . 22
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Contact information . . . . . . . . . . . . . . . . . . . . 22
© Koninklijke Philips Electronics N.V. 2005
All rights are reserved. Reproduction in whole or in part is prohibited without the prior
written consent of the copyright owner. The information presented in this document does
not form part of any quotation or contract, is believed to be accurate and reliable and may
be changed without notice. No liability will be accepted by the publisher for any
consequence of its use. Publication thereof does not convey nor imply any license under
patent- or other industrial or intellectual property rights.
Date of release: 8 September 2005
Document number: 9397 750 14618
Published in The Netherlands
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