ZL30112 Data Sheet
16
Zarlink Semiconductor Inc.
Figure 7 - Crystal Oscillator Circuit
7.3 Power Up Sequence
The ZL30112 requires that the 3.3 V is not powered after the 1.8 V. This is to prevent the risk of latch-up due to the
presence of parasitic diodes in the IO pads.
Two options are given:
1. Power-up 3.3 V first, 1.8 V later
2. Power up 3.3 V and 1.8 V simultaneously ensuring that the 3.3 V power is never lower than 1.8 V minus a few
hundred millivolts (e.g., by using a schottky diode or controlled slew rate)
7.4 Reset Circuit
A simple power up reset circuit with about a 60 μs reset low time is shown in Figure 8. Resistor R
P
is for protection
only and limits current into the RST
pin during power down conditions. The reset low time is not critical but should
be greater than 300 ns.
Figure 8 - Power-Up Reset Circuit
OSCo
1 MΩ
20 MHz
ZL30112
OSCi
100 Ω
1 μH
The 100 Ω resistor and the 1 µH inductor may improve
stability and are optional.
ZL30112 Data Sheet
17
Zarlink Semiconductor Inc.
8.0 Characteristics
8.1 AC and DC Electrical Characteristics
* Exceeding these values may cause permanent damage. Functional operation under these conditions is not implied.
* Voltages are with respect to ground (GND) unless otherwise stated.
* Voltages are with respect to ground (GND) unless otherwise stated.
Absolute Maximum Ratings*
Parameter Symbol Min. Max. Units
1 Supply voltage V
DD_R
-0.5 4.6 V
2 Core supply voltage V
CORE_R
-0.5 2.5 V
3 Voltage on any digital pin V
PIN
-0.5 6 V
4 Voltage on OSCi and OSCo pin V
OSC
-0.3 V
DD
+ 0.3 V
5 Current on any pin I
PIN
30 mA
6 Storage temperature T
ST
-55 125 °C
7 Package power dissipation P
PD
195 mW
8ESD rating V
ESD
2k V
Recommended Operating Conditions*
Characteristics Sym. Min. Typ. Max. Units
1 Supply voltage V
DD
2.97 3.30 3.63 V
2 Core supply voltage V
CORE
1.62 1.80 1.98
V
3 Operating temperature T
A
-40 25 85 °C
DC Electrical Characteristics*
Characteristics Sym. Min. Max. Units Notes
1 Supply current with: OSCi = 0 V
I
DDS
2.5 7.0 mA Outputs loaded
with 30 pf
2OSCi = ClockI
DD
43 mA Outputs unloaded
3 Core supply current with: OSCi = 0 V I
CORES
20 uA
4OSCi = ClockI
CORES
18 mA
5 Schmitt trigger Low to High threshold
point
V
CIH
1.43 1.85 V All device inputs
are Schmitt trigger
type.
6 Schmitt trigger High to Low threshold
point
V
CIL
0.8 1.1 V
7 Input leakage current I
IL
-105 105 µA V
I
=V
DD
or 0 V
ZL30112 Data Sheet
18
Zarlink Semiconductor Inc.
* Supply voltage and operating temperature are as per Recommended Operating Conditions.
* Voltages are with respect to ground (GND) unless otherwise stated.
* Supply voltage and operating temperature are as per Recommended Operating Conditions.
* Voltages are with respect to ground (GND) unless otherwise stated.
Figure 9 - Timing Parameter Measurement Voltage Levels.
8 High-level output voltage V
OH
2.4 V I
OH
= 8 mA for
clock and frame-
pulse outputs,
4mA for status
outputs
9 Low-level output voltage V
OL
0.4 V I
OL
= 8 mA for
clock and frame-
pulse outputs,
4mA for status
outputs
AC Electrical Characteristics* - Timing Parameter Measurement Voltage Levels (see Figure 9).
Characteristics Sym. CMOS Units
1 Threshold Voltage V
T
1.5 V
2 Rise and Fall Threshold Voltage High V
HM
2.0 V
3 Rise and Fall Threshold Voltage Low V
LM
0.8 V
DC Electrical Characteristics*
Characteristics Sym. Min. Max. Units Notes
t
IRF,
t
ORF
Timing Reference Points
ALL SIGNALS
V
HM
V
T
V
LM
t
IRF,
t
ORF

ZL30112LDG1

Mfr. #:
Manufacturer:
Microchip / Microsemi
Description:
Clock Generators & Support Products Pb Free SLIC/CODEC DPLL
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet