DSA612
Two-Output Low Power MEMS Clock Generator for Automotive
Features
• Automotive AEC-Q100 Qualified
• MEMS-Based Clock Generator Eliminates the
Need for External Crystal or Reference Clock
• Two LVCMOS Output Clocks: 2 kHz to 100 MHz
• Low Power Consumption: ~5 mA (Both Outputs
Active)
• Wide Supply Voltage Range: 1.71V to 3.63V
• Ultra-Small Package Sizes:
- 1.6 mm x 1.2 mm
- 2.0 mm x 1.6 mm
- 2.5 mm x 2.0 mm
• High Frequency Stability: ±20 ppm, ±25 ppm,
±50 ppm
• Wide Temperature Range:
- Automotive (Grade 1): –40°C to +125°C
- Automotive (Grade 2): –40°C to +105°C
- Automotive (Grade 3): –40°C to +85°C
• Excellent Shock and Vibration Immunity:
- Shock: Qualified to MIL-STD-883E Method
2002.3. Test Condition G (30,000g)
- Vibration: Qualified to MIL-STD-883E Method
2007.2, Test Condition C (70g)
• Spread Spectrum Clock Generation for EMI
Reduction
• High Reliability
• Lead-Free and RoHS-Compliant
General Description
The DSA612 is a MEMS low power, ultra-small
footprint, crystal-less family of clock generators. The
DSA612 family is factory-configurable and generates
up to two independent LVCMOS outputs. Each output
can be configured to generate any frequency from
2 kHz to 100 MHz. The two-output DSA612 MEMS
oscillators are excellent choices for use as clock
references in automotive applications in which small
size, low power consumption, and long-term reliability
are paramount. The family of devices is AEC-Q100
qualified.
The DSA612 implements Microchip’s proven
PureSilicon™ MEMS technology to provide low jitter
and high stability across a wide range of supply
voltages and temperatures. By eliminating the external
quartz crystal, Microchip’s crystal-less™ clock
generators significantly enhance reliability and
accelerate product development.
The DSA612 has two control inputs that can be
configured to function as output enable/disable,
standby, sleep, spread spectrum enable, and
frequency select. The DSA612 is available in space
saving 6-pin, 1.6 mm x 1.2 mm, 2.0 mm x 1.6 mm, and
2.5 mm x 2.0 mm VFLGA plastic packages.
The DSA612 spread spectrum function includes both
center and down spreading, and is explained further in
the
Spread Spectrum
section.
The DSA612 is a highly configurable device and is
factory programmed to meet the customer’s needs.
Microchip’s
ClockWorks Configurator
must be used to
choose the necessary options, create the final part
number, data sheet, and order samples.
Applications
• Automotive Infotainment
• Automotive ADAS, Surround View Cameras
• In-Vehicle Networking, CAN bus, Ethernet
Package Type
DSA612
6-Lead VFLGA
(Top View)
OE/STDBY/SLEEP/SSEN/FS/NC
1
6 VDD
OE/STDBY/SLEEP/FS/NC
2
5 CLK2
VSS
3
4 CLK1
2019 Microchip Technology Inc.
DS20006263A-page 1
DSA612
1.0
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings †
Supply Voltage .......................................................................................................................................... –0.3V to +4.0V
Input Voltage .................................................................................................................................... –0.3V to V
DD
+ 0.3V
ESD Protection (HBM) ...............................................................................................................................................4 kV
ESD Protection (MM) ................................................................................................................................................400V
ESD Protection (CDM) ...............................................................................................................................................2 kV
† Notice:
Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device.
This is a stress rating only and functional operation of the device at those or any other conditions above those indicated
in the operational sections of this specification is not intended. Exposure to maximum rating conditions for extended
periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
Electrical Characteristics:
V
DD
= 1.8V ±5% to 3.3V ±10%; T
A
= –40°C to +125°C, unless noted.
Parameter
Supply Voltage
Active Supply Current
Active Supply Current (Sleep
Mode, 1 PLL Off)
Active Supply Current
(32.768 kHz Output Only)
Standby Supply Current,
Note 2
Frequency Stability,
Note 3
Symbol
V
DD
I
DD
I
DDSL
I
DD32k
I
STDBY
Min.
1.71
—
—
—
—
—
—
Δf
—
—
Aging
Startup Time
Δf
t
SU
V
IH
Input Logic Levels,
Note 4
V
IL
Output Disable Time
Output Enable Time
Enable Pull-Up Resistor
Output Logic Levels
V
OLY
t
DA
t
EN
—
V
OHY
—
—
—
0.7 x
V
DD
—
—
—
—
0.8 x
V
DD
—
Typ.
—
5
3
1.4
1.0
1.5
—
—
—
—
—
—
—
—
—
1.0
300
—
—
Max.
3.63
6
—
—
—
—
±20
±25
±50
±5
±1
1.5
—
0.3 x
V
DD
200 + 2
Periods
Units
V
mA
mA
mA
μA
Conditions
Note 1
f
CLK1
= 27 MHz, f
CLK2
= 25 MHz,
V
DD
= 1.8V, No Load
CLK2 = SLEEP, f
CLK1
= 25 MHz,
V
DD
= 1.8V, No Load
CLK2 = SLEEP, f
CLK1
=
32.768 kHz, V
DD
= 1.8V, No Load
V
DD
= 1.8V/2.5V
V
DD
= 3.3V
All temperature ranges
1st year @ +25°C
Per year after the first year
From 90% V
DD
to valid clock
output, T = +25°C
Input logic high
ppm
ppm
ms
V
Input logic low
ns
μs
kΩ
V
Note 5
Note 6
Note 7
I = 6 mA (high drive) or I = 3 mA
(standard drive)
I = –6 mA (high drive) or I = –3 mA
(standard drive)
—
—
—
0.2 x
V
DD
2019 Microchip Technology Inc.
DS20006263A-page 3
DSA612
ELECTRICAL CHARACTERISTICS (CONTINUED)
Electrical Characteristics:
V
DD
= 1.8V ±5% to 3.3V ±10%; T
A
= –40°C to +125°C, unless noted.
Parameter
Symbol
Min.
—
t
RY1
/t
FY1
Output Transition Time, Rise
Time/Fall Time
t
RY2
/t
FY2
—
Frequency
Output Duty Cycle
f0
SYM
0.002
45
—
Period Jitter, RMS
J
PER
—
—
—
Period Jitter, Peak-to-Peak
J
PER
—
—
—
Cycle-to-Cycle Jitter (peak)
J
Cy-Cy
—
—
Note 1:
2:
3:
4:
5:
6:
7:
0.5
—
—
17
14
9
120
100
80
105
90
70
1.0
100
55
—
—
—
—
—
—
—
—
—
ps
ps
ps
ns
MHz
%
—
—
0.6
1.0
1.2
1.5
ns
ns
Typ.
1.2
Max.
2.0
Units
ns
Conditions
Standard drive 20% - 80% C
L
=
10 pF, V
DD
= 1.8V
Standard drive 20% - 80% C
L
=
10 pF, V
DD
= 2.5V/3.3V
High drive 20% - 80% C
L
= 15 pF,
V
DD
= 1.8V
High drive 20% - 80% C
L
= 15 pF,
V
DD
= 2.5V/3.3V
—
—
f
CLK1
= 24 MHz, f
CLK2
= 27 MHz,
V
DD
= 1.8V
f
CLK1
= 24 MHz, f
CLK2
= 27 MHz,
V
DD
= 3.3V
f
CLK1
= 27 MHz, f
CLK2
= 27 MHz or
32.768 kHz, V
DD
= 3.3V
f
CLK1
= 24 MHz, f
CLK2
= 27 MHz,
V
DD
= 1.8V
f
CLK1
= 24 MHz, f
CLK2
= 27 MHz,
V
DD
= 3.3V
f
CLK1
= 27 MHz, f
CLK2
= 27 MHz or
32.768 kHz, V
DD
= 3.3V
f
CLK1
= 24 MHz, f
CLK2
= 27 MHz,
V
DD
= 1.8V
f
CLK1
= 24 MHz, f
CLK2
= 27 MHz,
V
DD
= 3.3V
f
CLK1
= 27 MHz, f
CLK2
= 27 MHz or
32.768 kHz, V
DD
= 3.3V
V
DD
pin should be filtered with a 0.1 μF capacitor.
Excludes input pull-up current.
Includes frequency variations due to initial tolerance, temperature, and power supply voltage.
Input waveform must be monotonic with rise/fall time < 10 ms.
Output disable time takes up to two Periods of the output waveform, plus 200 ns.
For parts configured with OE, not Standby.
Output is enabled if pad is floated or not connected.
DS20006263A-page 4
2019 Microchip Technology Inc.
Industrial Control Electronics
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