16SDI-HS
16-Bit, Six-Channel Sigma-Delta Analog Input PMC Board
With 1.1 MSPS Sample Rate per Channel, and Two Independent Clocks
Available in PMC, PCI, cPCI and PC104-Plus and PCI Express form factors as:
PMC-16SDIHS:
PMC, Single-width
PCI-16SDIHS:

PCI, short lengthcPCI-16SDIHS:

cPCI, 3U

PC104P-16SDIHS:

PC104-Plus

PCIe-16SDIHS:

PCI Express

PCIe104-16SDIHS:

PCIe, one-lane on PC/104 form factor

See Ordering Information for details.
Call for availability of other form factors, such as XMC, CCPMC, etc.

Features Include:Sigma-Delta Conversion; No External Antialiasing Filters RequiredHigh Effective Sampling Rate; 16-32 Times the Effective Rate of Successive Approximation
Converters Operating at the Same Conversion Rate

Integral Antialiasing Input Filters Reject Out-of-Band Interference ComponentsSoftware-Selectable Ranges: ±1.25 Volts, ±2.5 Volts, ±5 Volts or ±10 Volts

Six 16-Bit Analog Input Channels; Dedicated Sigma-Delta Converter per Channel

Sample Rates Adjustable up to 1,100 K-Samples per Second per Channel

Two Independent Sample-Rate Generators; Adjustable with 0.2 Percent Resolution

Low Noise; Less than 130µVRMS on ±1.25 Volt Input Range64K-Sample FIFO Buffer with 2-Channel DMA support. All Data is Channel-Tagged.

Harmonic Sampling Supported, with Clocking Ratios Between Channels from 1 to 20

Auto calibration Uses Hardware Correction; No missing Codes IntroducedIntegral Shield Assures Minimum Susceptibility to Radiated Noise in PMC Environments
Single-width PMC Form Factor
 VxWorks™ and WinNT™ Drivers are available

Applications Include: Acoustics Analysis
 Analog Inputs
 Data Acquisition Systems

 Voltage Measurement
 Process Monitoring Industrial Robotics

 Automatic Test Equipment
 Audio Waveform Analysis
 Environmental Test Systems
REV: 080510

Overview:
The 6-channel PMC-16SDI-HS analog input board provides high-density precision 16-bit analog input
resources in a single-width PMC form factor. Optimized for flexibility and performance, the board is ideal fora wide variety of applications, ranging from precision voltage measurements, to the analysis of complex audio
signals and waveforms. Each of the six sigma-delta analog input channels can be controlled by either of two
independent sample clocks, and multiple channels can be harmonically locked together. Sample rates areadjustable from 30 KSPS to 1.1 MSPS, and the input range is software selectable as ±1.25V, ±2.5V, ±5V or±10V. Internal auto calibration networks permit periodic calibration to be performed without removing theboard from the system.

Functional Description:
A PCI interface adapter provides the interface between the controlling PCI bus and the internal local controller
through a 32-bit local bus (Figure 1). Each of the six input channels contains an input buffer, an adaptive
digital-image filter, and a dedicated sigma-delta A/D converter (ADC). The inputs can be configured for
either differential or single-ended operation, or an internal voltage reference can be applied to all channels to
support selftest operations and auto calibration. Gain and offset trimming of the input channels is performedby calibration DAC's that are loaded with channel correction values during auto calibration. The use ofcalibration DAC's eliminates the missing codes that occur when analog input channels are calibrated
exclusively in the digital domain.
Each ADC contains a digital antialiasing filter that rejects out-of-band signals above approximately 48 percentof the selected sample rate. Conversion data from all active channels is transferred to the PCI bus through a64K-sample data buffer that has a software-controlled threshold for generating interrupt requests. Multiple
channels can be synchronized to perform synchronous sampling, either by a software command, or by external
hardware sync and clock input signals.
I/O
Conn
AnalogInputs
(6 Diff/S.E.)

Input
Configuration
SwitchesV-TestOut

Buffer Amps& Filters

To ADC’S

16-Bit ADC’s
(6)

Input
ControlInput
Data

Voltage
Reference
External
Sync
Cal DAC’s

Sample-Rate
Clocks (2)Local
Controller
PCIConn
PCI
Interface
Adapter

Figure 1. PMC-16SDI-HS; Functional Organization
This product is functionally compatible with the IEEE PCI local bus specification Revision 2.2, and supports
the "plug-n-play" initialization concept. System input/output connections are made at the front panel through ahigh-density metal-shrouded 37-pin connector. Power requirements consist of +5 VDC, in compliance withthe PCI specification, and operation over the specified temperature range is achieved with conventional aircooling.

ELECTRICAL SPECIFICATIONSO

At +25 C, with specified operating conditions.

Input Characteristics:
Configuration:

6 input channels, software controlled as differential or single-ended.
Optional 2-channel and 4-channel configurations available.

Voltage Range:

Software Configurable as ±1.25 Volts, ±2.5 Volts, ±5 Volts or ±10 Volts

Input Impedance:

1.0 Megohm typical, in parallel with 20 pF. 2 Megohms line-line.

Common Mode Rejection:

80 dB, DC-60 Hz (Differential mode)

Common Mode Range:±10 Volts with zero normal-mode input

Offset Voltage:±0.6 millivolts, maximum

Signal-to-Noise Ratio:

85dB at 30 KSPS, 67dB at 1100KSPS, typical.

Overvoltage Protection:±30-Volt transient with power applied; ±15 Volts with power removed

Transfer Characteristics:
Resolution:

16 Bits (0.0015 percent of FSR)

Sample Rate:

30,000 to 1,100,000 samples per second per channel

Oversampling Factor:

x32 or x16

DC Accuracy:(Maximum composite error)

Range

Midscale Accuracy±Fullscale Accuracy

±10V
±5V
±2.5V
±1.25V±1.2mV±1.1mV±0.9mV±0.8mV±5.2mV±3.1mV±2.2mV±1.5mV

Small Signal Bandwidth:

DC to approximately 48 percent of the selected sample rate

Power Bandwidth:

DC to 1.2*106 Hz-Vpp minimum. Accepts 100kHz input at 12 VPP.

Crosstalk Rejection:

84 dB typical, DC-10 kHz

Antialias Filtering:

Each ADC provides internal digital antialias filtering at approximately 48
percent of the selected sample rate. This digital filter is supported by amulti-pole analog filter that rejects interference at the harmonic images ofthe digital filter. The cutoff frequency of the analog filter in each channel
is optimized automatically in response to the selected sample rate.

Integral Nonlinearity:±0.003 percent of FSR, typicalDifferential Nonlinearity:±0.0015 percent of FSR, maximum

Total Harmonic Distortion:

84 dB typical, from DC to 40 percent of sample rate

Operating Modes and Controls:
Organization:

Two 3-channel analog input groups, and two sample rate generators.
Each channel group can operate from either rate generator. The sample
rate for each individual channel is selected by dividing the frequency of theassigned rate generator by any integer from 1 through 20.

Sample Rate Generators:

Either of two independent internal rate generators can be assigned to any
input channel group. Each generator is adjustable from 19.2 MHz to38.4 MHz, and provides sample rates from 600 KSPS to 1200 KSPS after
division by 32 (x16 oversampling), or from 300 KSPS to 600 KSPS after
division by 64 (x32 oversampling). Subsequent division by an integer
from 1 to 20 for each channel provides sample rates from 15 KSPS to1200 KSPS. (Specified performance is guaranteed only within the range
from 30 KSPS to 1100 KSPS). Settling time when changing frequencies
is approximately 20 ms, and settling completion is selectable as aninterrupt event. Setting resolution is 0.2 percent or less; accuracy is ±0.08
percent.

External Clock I/O:

An LVDS hardware output clock can be derived either from a 16-32 MHz
LVDS external hardware input clock or from an internal rate generator.
The external clock input can be selected as the rate generator for any or all
channels. .
Multiple boards can be locked to a common clock by daisy-chaining theoutput clock from each board to the input clock of the next board in thechain. As many as six boards can be daisy-chained together.

Synchronization:

Sampling can be synchronized within each channel group throughsoftware, or each group can be synchronized to an external LVDS
hardware sync input. By using the daisy-chain configuration described forExternal Clock I/O, hardware sync inputs and outputs can be used tosynchronize the sampling among multiple boards.

Harmonic Sampling:

Harmonic sampling ratios are implemented by adjusting the sample ratesof channels within a group to specific fractions of the assigned rate
generator frequency. (See Sample Rate Generators).

Data Format:

Software selected as either offset binary or two's complement

Data Buffer:

FIFO, 64K-Samples, 16-Bit data field, 3-Bit channel tag.
Adjustable threshold flag with associated interrupt response.

Buffer Size Register:Contains the total number of samples present in the input data buffer.

PCI Compatibility:
Conforms to PCI Specification 2.2, with D32 read/write transactions.
2-Channel DMA transfers as bus master in both block and demand modes.
Single multifunction interrupt.
Universal (3.3V/5V) signaling available; contact factory.
Power Requirements:+5VDC ±0.2 VDC at 1.5 Amps maximum
Power Dissipation:
6.0 Watts, Side 1
1.5 Watts, Side 2Mechanical Characteristics: (PMC Form Factor)
Height:Depth:
Width:
Shield:13.5 mm (0.53 in)
149.0 mm (5.87 in)
74.0 mm (2.91 in)
Side 1 is protected by an EMI shield.

Environmental Specifications:Ambient Temperature Range:

Operating: 0 to +55 degrees Celsius
Storage: -40 to +85 degrees Celsius

Relative Humidity:

Operating: 0 to 80%, non-condensing
Storage: 0 to 95%, non-condensingAltitude:
Cooling:

Operation to 10,000 ft.
Conventional convection cooling; 200 LPFM.

Ordering Information:
Specify the basic product model number (PMC-16SDI-HS), followed by an option suffix "-A", as indicatedbelow. For example, model number PMC-16SDI-HS-6 describes a board with 6 input channels.

Basic Model NumberForm Factor

PMC-16SDIHS

PMC (Native)

PCI-16SDIHS 1

PCI, short lengthcPCI-16SDIHS 1

cPCI, 3U

PCIe-16SDIHS 1

cPCI, 3U
PC104-Plus (Native)

PC104P-16SDIHS
PCIe104-16SDIHS
11,2PCIe, one-lane on PC/104 form factor

Module installed and tested on an adapter, with mechanical and functional equivalency.
Contact factory for availability in native form factors.
2PCIe104 supports only the PCIe bus.

Optional Parameter
Number of Input Channels:

Value

Specify Option As:

2 Channels

A=2

4 Channels

A=46 Channels

A=6Initiator External Clocking

Target-only external clocking

B = (Blank)(Check for availability)

Initiator and Target External clocking

B= EXT

SYSTEM I/O CONNECTIONS
Table 1. System Connector Pin Functions
PIN

SIGNALPIN

1INPUT RETURN

20INPUT CHAN 00 HI

SIGNAL2

INPUT RETURN

21INPUT CHAN 00 LO

3INPUT RETURN

22INPUT CHAN 01 HI

4INPUT RETURN

23INPUT CHAN 01 LO

5INPUT RETURN

24

INPUT CHAN 02 HI

6INPUT RETURN

25

INPUT CHAN 02 LO

7INPUT RETURN26

INPUT CHAN 03 HI

8INPUT RETURN

27

INPUT CHAN 03 LO

9INPUT RETURN

28

INPUT CHAN 04 HI

10INPUT RETURN

29INPUT CHAN 04 LO

11

INPUT RETURN30INPUT CHAN 05 HI

12VTEST

31

INPUT CHAN 05 LO

13VTEST RETURN

32

INPUT RETURN

14DIGITAL RETURN

33

DIGITAL RETURN

15DIGITAL RETURN

34

SYNC INPUT HI16

CLOCK INPUT HI

35

SYNC INPUT LO

17

CLOCK INPUT LO

36

SYNC OUTPUT HI18

CLOCK OUTPUT HI

37

SYNC OUTPUT LO

19

CLOCK OUTPUT LO

PIN 37

PIN 19P2CONNPIN 20

PIN 137-PIN MICRO-D CONNECTOR
Panel Pin-View

Figure 2. System Input/Output Connector

System Mating Connector:
Rugged 37-pin 0.050" dual-row connector
with metal shell. Board connector mates withcable connector type (includes prewired
36-inch pigtail wires)::

Min-E-Con

MCE-37P6E5-36-0J

General Standards Corporation assumes no responsibility for the use of any circuits in this product. No circuit patent licenses
are implied. Information included herein supersedes previously published specifications on this product and is subject tochange without notice.