AD AD1958 Pll/multibit dac Datasheet

a
PLL/Multibit - DAC
AD1958
FEATURES
5 V Stereo Audio DAC System
Accepts 16-/18-/20-/24-Bit Data
Supports 24 Bits, 192 kHz Sample Rate
Accepts a Wide Range of Sample Rates Including:
32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, and 192 kHz
Multibit Sigma-Delta Modulator with “Perfect Differential
Linearity Restoration” for Reduced Idle Tones and
Noise Floor
Data Directed Scrambling DAC—Least Sensitive to Jitter
Single-Ended Output for Easy Use
108 dB Signal-to-Noise (Not Muted) at 48 kHz Sample
Rate (A-Weighted Stereo)
109 dB Dynamic Range (Not Muted) at 48 kHz Sample
Rate (A-Weighted Stereo)
–96 dB THD + N (Stereo)
75 dB Stop Band Attenuation
On-Chip Clickless Volume Control
Hardware and Software Controllable Clickless Mute
Serial (SPI) Control for: Serial Mode, Number of Bits,
Sample Rate, Volume, Mute, De-Emphasis
Digital De-Emphasis Processing for 32 kHz, 44.1 kHz,
and 48 kHz Sample Rates
Programmable Dual Fractional-N PLL Clock Generator
27 MHz Master Clock Oscillator
Better than 100 ps rms Master Clock Jitter
Generated System Clocks
SCLK0: 33.8688 MHz
SCLK1: 22.5792 MHz, 24.576 MHz, 33.8688 MHz, or
36.864 MHz
SCLK2: 16.9344 MHz
Flexible Serial Data Port with Right-Justified, LeftJustified, I2S-Compatible, and DSP Serial Port Modes
28-Lead SSOP Plastic Package
APPLICATIONS
DVD, CD, Home Theater Systems, Automotive Audio
Systems, Sampling Musical Keyboards, Digital Mixing
Consoles, Digital Audio Effects Processors
PRODUCT OVERVIEW
The AD1958 is a complete high-performance single-chip stereo
digital audio playback system. It is comprised of a multibit sigmadelta modulator, digital interpolation filters, and analog output
drive circuitry with an on-board dual PLL clock generator.
Other features include an on-chip stereo attenuator and mute,
programmed through an SPI-compatible serial control port.
The AD1958 is fully compatible with all known DVD formats
including 96 kHz and 192 kHz sample frequencies and 24 bits.
It also is backwards-compatible by supporting 50 µs/15 µs
digital de-emphasis for “redbook” compact discs, as well as
de-emphasis at 32 kHz and 48 kHz sample rates.
The AD1958 has a simple but flexible serial data input port that
allows for glueless interconnection to a variety of ADCs, DSP
chips, AES/EBU receivers, and sample rate converters. The
AD1958 can be configured in left-justified, I2S, right-justified,
or DSP serial-port-compatible modes. It can support 16, 20,
and 24 bits in all modes. The AD1958 accepts serial audio data
in MSB first, two’s-complement format, and operates from a
single 5 V power supply. It is fabricated on a single monolithic
integrated circuit and housed in a 28-lead SSOP package for
operation over the temperature range –40°C to +105°C.
FUNCTIONAL BLOCK DIAGRAM
XIN
XOUT MCLK
LOOP
FILTERS
CLOCK
OUTPUTS
2
AD1958
16-/20-/24BIT DIGITAL
DATA INPUT
3
3
CONTROL DATA
INPUT
3
OSC
PLL
CIRCUIT
SERIAL CONTROL
INTERFACE
ATTEN/MUTE
8 fS
INTERPOLATOR
MULTIBIT
SIGMA-DELTA
MODULATOR
VOLTAGE
REFERENCE
OUTPUT
BUFFER
DAC
SERIAL
DATA
INTERFACE
ANALOG
OUTPUTS
ATTEN/MUTE
8 fS
INTERPOLATOR
2
RESET
L
MUTE
ZERO FLAG
PLL SUPPLY
MULTIBIT
SIGMA-DELTA
MODULATOR
2
DIGITAL SUPPLY
OUTPUT
BUFFER
DAC
R
3
ANALOG SUPPLY
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Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 2001
AD1958–SPECIFICATIONS
TEST CONDITIONS UNLESS OTHERWISE NOTED
Supply Voltages
(AVDD, DVDD, PVDD)
Ambient Temperature
Input Clock
Input Signal
Input Sample Rate
Measurement Bandwidth
Word Width
Load Capacitance
Load Impedance
Input Voltage HI
Input Voltage LO
5.0 V
25°C
12.288 MHz (256 × fS Mode)
996.0938 Hz,
0 dB Full Scale
48 kHz
20 Hz to 20 kHz
24 Bits
100 pF
47 kΩ
2.0 V
0.8 V
ANALOG PERFORMANCE
Min
Resolution
Signal-to-Noise Ratio (20 Hz to 20 kHz)
No Filter (Stereo)
With A-Weighted Filter (Stereo)
Dynamic Range (20 Hz to 20 kHz, –60 dB Input)
No Filter (Stereo)
With A-Weighted Filter (Stereo)
Total Harmonic Distortion + Noise (Stereo)
PLL Performance
Master Clock Input Frequency
Generated System Clocks
SCLK0
SCLK1
SCLK2
Jitter (SCLK0 and SCLK1)
Jitter (MCLK)
Duty Cycle (SCLK0, SCLK1)1
Duty Cycle (MCLK)
Analog Outputs
Single-Ended Output Range (± Full Scale)
Output Capacitance at Each Output Pin
Out-of-Band Energy (0.5 × fS to 100 kHz)
VREF (FILTR)
DC Accuracy
Gain Error
Interchannel Gain Mismatch
Gain Drift
DC Offset
Interchannel Crosstalk (EIAJ Method)
Interchannel Phase Deviation
Mute Attenuation
De-Emphasis Gain Error
102
–90
49
Typ
Max
24
Bits
105
108
dB
dB
105
109
–96
dB
dB
dB
27
MHz
33.8688
12.288
22.5792
110
60
50
50
MHz
MHz
MHz
ps rms
ps rms
%
%
175
100
51
3.17
2
–90
2.39
–5
–0.15
–25
Unit
± 2.0
± 0.015
150
–3
–120
± 0.1
–100
+5
+0.15
250
+20
± 0.1
V p-p
pF
dB
V
%
dB
ppm/°C
mV
dB
Degrees
dB
dB
NOTES
1
In some combinations with Clock Configuration Mode = 1 (see Table III), SCLK will not be 50%.
2
Performance of right and left channels is identical (exclusive of the Interchannel Gain Mismatch and Interchannel Phase Deviation specifications).
Specifications subject to change without notice.
DIGITAL I/O (–40°C to +105°C )
Min
Input Voltage HI (VIH)
Input Voltage LO (VIL)
Input Leakage (IIH @ VIH = 2.4 V)
Input Leakage (IIL @ VIL = 0.8 V)
High Level Output Voltage (VOH) IOH = 1 mA
Low Level Output Voltage (VOL) IOL = 1 mA
Input Capacitance
Typ
Max
2.0
0.8
10
10
3.5
0.4
20
Unit
V
V
µA
µA
V
V
pF
Specifications subject to change without notice.
–2–
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AD1958
TEMPERATURE RANGE
Min
Specifications Guaranteed
Functionality Guaranteed
Storage
Typ
Max
Unit
+105*
+125
°C
°C
°C
25
–40
–55
NOTE
*105°C ambient guaranteed for a 4-layer board, two 1 oz. planes, two 2 oz. signal layers. Derate to 85 °C for 2-layer board, 2 oz. layers.
Specifications subject to change without notice.
POWER
Supplies
Voltage, Analog Digital PLL
Analog Current
Digital Current
PLL Current
Dissipation
Operation—All Supplies
Operation—Analog Supply
Operation—Digital Supply
Operation—PLL Supply
Power Supply Rejection Ratio
1 kHz 300 mV p-p Signal at Analog Supply Pins
20 kHz 300 mV p-p Signal at Analog Supply Pins
Min
Typ
Max
Unit
4.50
5
36
25
30
5.50
41
29
34
V
mA
mA
mA
455
180
125
150
540
mW
mW
mW
mW
–60
–50
dB
dB
Specifications subject to change without notice.
DIGITAL FILTER CHARACTERISTICS
Sample Rate (kHz)
Pass Band (kHz)
Stop Band (kHz)
Stop Band Attenuation (dB)
Pass Band Ripple (dB)
44.1
48
96
192
DC–20
DC–21.8
DC–39.95
DC–87.2
24.1–328.7
26.23–358.28
56.9–327.65
117–327.65
75
75
75
60
± 0.0002
± 0.0002
± 0.0005
0/–0.04 (DC–21.8 kHz)
0/–0.5 (DC–65.4 kHz)
0/–1.5 (DC–87.2 kHz)
Specifications subject to change without notice.
GROUP DELAY
Chip Mode
Group Delay Calculation
fS
Group Delay
Unit
INT8× Mode
INT4× Mode
INT2× Mode
24.625/fS
15.75/fS
14/fS
48 kHz
96 kHz
192 kHz
513
164
72.91
µs
µs
µs
Specifications subject to change without notice.
DIGITAL TIMING (Guaranteed over –40°C to +105C, AVDD = DVDD = PVDD = 5.0 V 10%)
tDMP
tDML
tDMH
tDBH
tDBL
tDBP
tDLS
tDLH
tDDS
tDDH
tRSTL
MCLK Period (FMCLK = 256 × FLRCLK)
MCLK LO Pulsewidth (All Modes)
MCLK HI Pulsewidth (All Modes)
BCLK HI Pulsewidth
BCLK LO Pulsewidth
BCLK Period
LRCLK Setup
LRCLK Hold (DSP Serial Port Mode Only)
SDATA Setup
SDATA Hold
RST LO Pulsewidth
Specifications subject to change without notice.
REV. 0
–3–
Min
Unit
54
15
10
20
20
60
20
20
15
15
15
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
AD1958
ABSOLUTE MAXIMUM RATINGS*
PACKAGE CHARACTERISTICS
DVDD to DGND . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +6 V
AVDD to DGND . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +6 V
Digital Inputs . . . . . . . . . . DGND – 0.3 V to DVDD + 0.3 V
Analog Inputs . . . . . . . . . . AGND – 0.3 V to AVDD + 0.3 V
AGND to DGND . . . . . . . . . . . . . . . . . . . . –0.3 V to + 0.3 V
Reference Voltage . . . . . . . . . . . . . . . . . . . . . (AVDD + 0.3)/2
Soldering (10 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300°C
Min
␪JA (Thermal Resistance)
Junction-to-Ambient
(2-Layer Board)
␪JA (Thermal Resistance)
Junction-to-Ambient
(4-Layer Board—
2 Signal, 2 Planes)
␪JA (Thermal Resistance)
Junction-to-Case
*Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those listed in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability. Only one absolute
maximum rating may be applied at any one time.
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although
the AD1958 features proprietary ESD protection circuitry, permanent damage may occur on
devices subjected to high-energy electrostatic discharges. Therefore, proper ESD precautions are
recommended to avoid performance degradation or loss of functionality.
Typ
Max
Unit
109.0
°C/W
78.58
°C/W
39.0
°C/W
WARNING!
ESD SENSITIVE DEVICE
ORDERING GUIDE
Model
Temperature
Package Description
Package Option
AD1958YRS
AD1958YRSRL
EVAL-AD1958EB
–40°C to +105 °C
–40°C to +105 °C
28-Lead Small Outline Package
28-Lead Small Outline Package
Evaluation Board
RS-28
RS-28 on 13" Reels
PIN CONFIGURATION
CCLK 1
28
CDATA
CLATCH 2
27
MUTE
RESET 3
26
ZERO
LRCLK 4
25
FILTB
BCLK 5
24
AVDD
SDATA 6
23
OUTL
AD1958
DVDD 7
TOP VIEW 22 AGND1
DGND 8 (Not to Scale) 21 FLTR
SCLK0 9
20
OUTR
SCLK1 10
19
AGND0
SCLK2 11
18
LF1
MCLK 12
17
LF0
XOUT 13
16
PGND
XIN 14
15
PVDD
–4–
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AD1958
PIN FUNCTION DESCRIPTIONS
Pin
Input/Output
Mnemonic
Description
1
I
CCLK
2
3
I
I
CLATCH
RESET
4
5
I
I
LRCLK
BCLK
6
I
SDATA
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
I
I
O
O
O
I/O
O
I
DVDD
DGND
SCLK0
SCLK1
SCLK2
MCLK
XOUT
XIN
PVDD
PGND
LF0
LF1
AGND0
OUTR
FILTR
22
23
24
25
26
I
O
O
AGND1
OUTL
AVDD
FILTB
ZERO
27
I
MUTE
28
I
CDATA
Control Clock Input for Control Data. Control input data must be valid on
the rising edge of CCLK. CCLK may be continuous or gated.
Latch Input for Control Data
Reset. The AD1958 is placed in a reset mode when this pin is held LO.
The serial control port registers are reset to their default values. Set HI for
normal operation.
Left/Right Clock Input for Input Data. Must run continuously.
Bit Clock Input for Input Data. Need not run continuously; may be gated
or used in a burst fashion.
Serial input, MSB first, containing two channels of 16/20/24 bits of two’scomplement data per channel.
Digital Power Supply Connect to Digital 5 V Supply
Digital Ground
33.8688 MHz Clock Output
256/384/512/768 fS Output
16.9344 MHz/22.5792 MHz/512 fS Output
27 MHz Master Clock Output/256 fS DAC Clock Input
27 MHz Crystal Oscillator Output
27 MHz Crystal Oscillator/External Clock Input
PLL Power Supply. Connect to PLL 5 V Supply.
PLL Ground
PLL0 Loop Filter
PLL1 Loop Filter
Analog Ground
Right Channel Positive Line Level Analog Output
Voltage Reference Filter Capacitor Connection. Bypass and decouple the
voltage reference with parallel 10 µF and 0.1 µF capacitors to AGND.
Analog Ground
Left Channel Line Level Analog Output
Analog Power Supply. Connect to Analog 5 V Supply.
Filter Capacitor Connection. Connect 10 µF Capacitor to AGND.
Zero Flag Output. This pin goes HI when both channels have zero signal
input for more than 1024 L/R Clock Cycles.
Mute. Assert HI to Mute Both Stereo Analog Outputs. Deassert LO for
normal operation.
Serial Control Input, MSB first, containing 16 bits of unsigned data
per channel. Used for specifying channel-specific attenuation and mute.
O
O
FUNCTIONAL DESCRIPTION
DAC
into the audio band; care should be exercised in selecting
these components.
The AD1958 has two DAC channels arranged as a stereo pair
with single-ended analog outputs. Each channel has its own
independently programmable attenuator, adjustable in 16384
linear steps. Digital inputs are supplied through a serial data
input pin, SDATA, a frame clock, LRCLK, and a bit clock, BLCK.
The FILTB and FILTR pins should be bypassed by external
capacitors to ground. The FILTB pin is used to reduce the noise
of the internal DAC bias circuitry, thereby reducing the DAC
output noise. The voltage at the VREF pin, FILTR (VREF ~ 2.39 V)
can be used to bias external op amps used to filter the output signals.
Each analog output pin sits at a dc level of VREF (present at
FILTR), and swings ± 1.585 V for a 0 dB digital input signal.
A single op amp third-order external low-pass filter is recommended to remove high-frequency noise present on the output
pins. The output phase can be changed in an SPI control
register to accommodate inverting and noninverting filters.
Note that the use of op amps with low slew rate or low bandwidth may cause high frequency noise and tones to fold down
The DAC master clock frequency is 256 fS for the 32 kHz–48 kHz
range (8⫻ interpolation, see Table I). For the 96 kHz range (4⫻
interpolation) this is 128 fS. At 192 kHz (2⫻ interpolation), this
is 64 fS. It is supplied internally from the PLL clock system when
MCLK mode is set to Output in the PLL Control Register.
When the MCLK mode is changed to Input, it must be supplied
from an external source connected to MCLK. The output from
the 27 MHz PLL clock is disabled in this case.
REV. 0
–5–
AD1958
Table I. DAC Control Register
Bit 11:10
Bit 9:8
Bit 7
Bit 6
Bit 5:4
Bit 3:2
Bit 1:0
Interpolation
Factor
Serial Data
Width
Output Phase
Soft Mute
Serial Data
Format
De-Emphasis
Filter
SPI Register
Address
00 = 8×*
01 = 4×
10 = 2×
11 = Not Allowed
00 = 24 Bits*
01 = 20 Bits
10 = 16 Bits
11 = 16 Bits
0 = Noninverted*
1 = Inverted
0 = No Mute*
1 = Muted
00 = I2S*
00 = Right Justified
10 = DSP
11 = Left Justified
00 = None*
01 = 44.1 kHz
10 = 32 kHz
11 = 48 kHz
01
*Default Setting
PLL CLOCK SYSTEM
Table II. DAC Volume Registers
The PLL clock system is expected to be run from a 27 MHz
master clock supplied by the on-board crystal oscillator or an
external source connected to XIN. With the MCLK mode set
to Output, the 27 MHz clock is buffered out to the MCLK
pin. When set to Input, this pin is the 256 fS master clock input
for the DAC. SCLK0 is always set to 33.8688 MHz. SCLK1 is
intended to be used as a master audio clock and will be a multiple
of the sample rate set in the PLL control register (see Table III).
In Mode 0 (Bit 8), it can be set to 512 or 768 times either
44.1 kHz or 48 kHz. SCLK2 will be 16.3944 MHz (384 ⫻
44.1 kHz). In Mode 1, SCLK1 can be set to 256, 384, 512,
or 768 times 32 kHz, 44.1 kHz, or 48 kHz. SCLK2 can be
set to a constant 22.5792 MHz (512 ⫻ 44.1 kHz) or 512 fS.
Bit 15:2
Bit 1:0
Volume
SPI Register Address
14 Bits, Unsigned
14 Bits, Unsigned
00 = Left Volume
10 = Right Volume
Default is full volume
RESET/POWER-DOWN
RESET will set the control registers to their default settings. The
chip should be reset on power-up. After reset is deasserted, the
part will come out of reset on the next rising LRCLK.
SERIAL CONTROL PORT
The AD1958 has an SPI-compatible control port to permit
programming the internal control registers for the PLL and DAC.
The DAC output levels may be independently programmed
by means of an internal digital attenuator adjustable in 16384
linear steps.
There are two loop filter pins, LF0 and LF1. They should each
be bypassed to PVDD by a network consisting of a 33 nF capacitor in series with a 750 Ω resistor, paralleled with a 1.8 nF capacitor.
The 27 MHz Master Clock oscillator should have a crystal cut for
an 18 pF load connected between XIN and XOUT, with 22 pF
capacitors connected from XIN and XOUT to PGND.
Table III. PLL Control Register
Bit 11
Bit 10
Bit 9
Bit 8
PLL2
PowerDown
PLL1
PowerDown
XTAL
PowerDown
Clock
Configuration
0 = On1
1 = PD
0 = On1
1 = PD
0 = On1
1 = PD
Bit 7:6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1:0
fS
SCLK1
Select
Frequency
Double2
SCLK2
Select
MCLK
Mode
SPI
Register
Address
Reserved
Set to 0
Reserved
Set to 0
0 = Output1 11
1 = Input
0 = Mode 01
SCLK1 =
000: 36.864 MHz1
100: 24.576 MHz
110: 33.8688 MHz
111: 22.5792 MHz
Other combinations reserved
SCLK2 = 16.9344 MHz
1 = Mode 1
00 = 48 kHz
01 = Not
Allowed
10 = 32 kHz
11 = 44.1 kHz
0 = 256 fS
1 = 384 fS
0 = Normal 0 = 22.5792 MHz
1=
1 = 512 ⫻ fS2
fNOMINAL ⫻ 2
NOTES
1
Default Setting
2
In Mode 1, Frequency Double affects SCLK1 always and SCLK2 in 512 ⫻ fS mode.
–6–
REV. 0
AD1958
is expected that the digital and PLL sections will be run from a
common supply but isolated from one another. It is important
that the analog supply be as clean as possible.
The SPI control port is a 3-wire serial control port. The format
is similar to the Motorola SPI format except the input data word
is 16 bits wide. Max serial bit clock frequency is 8 MHz and
may be completely asynchronous to the PLL system or the
DAC. Figure 1 shows the format of the SPI signal. Note that
the CCLK can be gated or continuous, CLATCH should be
low during the 16 active clocks.
The internal voltage reference is brought out on Pin 21 (FILTR)
and should be bypassed as close as possible to the chip with a
parallel combination of 10 µF and 100 nF. The reference voltage may be used to bias external op amps to the common-mode
voltage of the analog output signal pins. The current drawn
from the FILTR pin should be limited to less than 50 µA.
POWER SUPPLY AND VOLTAGE REFERENCE
The AD1958 is designed for five-volt supplies. Separate power
supply pins are provided for the analog, digital, and PLL sections. These pins should be bypassed with 100 nF ceramic
chip capacitors, as close to the pins as possible, to minimize
noise. A bulk aluminum electrolytic capacitor of at least 22 µF
should also be provided on the same PC board. For best performance it is recommended that the analog supply be separate
from the digital and PLL supply. It is recommended that all
supplies be isolated by ferrite beads in series with each supply. It
SERIAL DATA PORTS—DATA FORMAT
The DAC serial data input mode defaults to I2S. By changing
Bits 4 and 5 in the DAC control register, the mode can be
changed to RJ, DSP, or LJ. The word width defaults to 24 bits
but can be changed by programming Bits 8 and 9 in the DAC
Control Register.
Figure 2 shows the serial mode formats.
CLATCH
CCLK
CDATA
D15
D0
D14
Figure 1. Format of SPI Signal
LRCLK
RIGHT CHANNEL
LEFT CHANNEL
BCLK
SDATA
MSB
LSB
MSB
LSB
LEFT-JUSTIFIED MODE—16 TO 24 BITS PER CHANNEL
LEFT CHANNEL
LRCLK
RIGHT CHANNEL
BCLK
SDATA
MSB
LSB
MSB
LSB
12S MODE—16 TO 24 BITS PER CHANNEL
RIGHT CHANNEL
LRCLK
LEFT CHANNEL
BCLK
SDATA
LSB
MSB
LSB
MSB
RIGHT-JUSTIFIED MODE—SELECT NUMBER OF BITS PER CHANNEL
LRCLK
BCLK
SDATA
MSB
LSB
MSB
LSB
DSP MODE—16 TO 24 BITS PER CHANNEL
1/fS
NOTES
1. DSP MODE DOES NOT IDENTIFY CHANNEL.
2. LRCLK NORMALLY OPERATES AT fS EXCEPT FOR DSP MODE WHICH IS 2 fS.
3. BCLK FREQUENCY IS NORMALLY 64 LRCLK BUT MAY BE OPERATED IN BURST MODE.
Figure 2. Stereo Serial Modes
REV. 0
–7–
AD1958
OUTLINE DIMENSIONS
Dimensions shown in inches and (mm).
28-Lead Small Outline Package (SSOP)
(RS-28)
28
C02708–0–10/01(0)
0.407 (10.34)
0.397 (10.08)
15
0.212 (5.38)
0.205 (5.21)
0.311 (7.9)
0.301 (7.64)
PIN 1
1
0.078 (1.98)
0.068 (1.73)
0.008 (0.203) 0.0256
(0.65)
0.002 (0.050) BSC
14
0.07 (1.79)
0.066 (1.67)
0.015 (0.38)
SEATING
0.010 (0.25)
PLANE
0.009 (0.229)
0.005 (0.127)
8ⴗ
0ⴗ
0.03 (0.762)
0.022 (0.558)
PRINTED IN U.S.A.
CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS
ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE
ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN
–8–
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