= +5.0V, unless otherwise noted. Where relevant, specifications apply to both left and right input/output channels.
PCM1750P, U
PARAMETER
RESOLUTION
DYNAMIC RANGE
ANALOG INPUT
Input Range
Input Capacitance
Aperture Delay
Aperture Uncertainty (Jitter)
Full Power Input Bandwidth
DIGITAL INPUT/OUTPUT
Logic Family
Logic Level: V
IH
V
IL
V
OH
V
OL
Output Data Format
Convert Command
Convert Command Pulse Width
Conversion Time
THD + N at –60dB Referred to Full Scale
CONDITIONS
MIN
18
+88
+90
±2.75
20
10
50
500
CMOS Compatible
I
IH
=
±5µA
I
IL
=
±5µA
I
SOURCE
= 1.0mA
I
SINK
= 3.2mA
+3.5
–0.3
+2.7
+V
D
+ 0.3
+1.5
V
V
V
V
TYP
MAX
UNITS
Bits
dB
V
pF
ns
ps
rms
kHz
Throughput Including Sample/Hold
(2)
+4.7
+0.2
+0.4
Serial, MSB First, BTC
(1)
Positive Edge
81
4.5
5.2
20.8
ns
µs
DYNAMIC CHARACTERISTICS
(20Hz to 24kHz; 4X data decimated to 1X)
Signal-to-Noise Ratio
(3)
Total Harmonic Distortion + N
(7)
f
IN
= 1kHz (0dB)
f
IN
= 1kHz (–20dB)
f
IN
= 1kHz (–60dB)
Channel Separation
ACCURACY
Gain Error
Gain Mismatch
BPZ (Bipolar Zero) Error
(8)
BPZ Error Mismatch
BPZ Differential Linearity Error
(9)
Linearity Error
Warm-up Time
DRIFT (With Internal Reference)
Gain
Bipolar Zero
DRIFT (Exclusive of Internal Reference)
Gain
Bipolar Zero
REFERENCE
V
REF
Output (Pins 19, 24):
Voltage
Current
Impedance
Accuracy
Drift
V
REF
Input (Pins 18, P25):
Impedance
(11)
POWER SUPPLY REJECTION
POWER SUPPLY REQUIREMENTS
±V
A
Supply Voltage Range
+V
D
Supply Voltage Range
+I
A
; +I
D
Combined Supply Current
–I
A
Supply Current
Power Dissipation
TEMPERATURE RANGE
Specification
Operating
Storage
fs = 192kHz
(4)
; f
IN
= 1kHz (0dB)
(5)
Without External Adjustments
fs = 192kHz
fs = 192kHz
fs = 192kHz
fs = 192kHz; f
IN
= 1kHz (0dB) and 0V
+88
+90
–90
–70
–30
+108
±2
±0.5
±2
±3
±0.002
±0.003
1
±50
±10
±10
±3
–88
–68
–28
dB
(6)
dB
dB
dB
dB
%
%
mV
mV
% of FSR
(10)
% of FSR
ms
ppm/°C
ppm of FSR/°C
ppm/°C
ppm of FSR/°C
+96
Channel to Channel
Channel to Channel
±5
±2.0
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
+2.75
±100
0.2
±25
±50
363 || 120
V
µA
Ω
mV
ppm/°C
Ω
|| pF
%/%
±5.25
+5.25
V
V
mA
mA
mW
°C
°C
°C
% of V
IN
/ % of V
SUPPLY
(12)
0.03
±4.75
+4.75
±5.00
+5.00
+28
–13
210
+V
A
; +V
D
= +5.0V
–V
A
= –5.0V
±V
A
=
±5.0V;
+V
D
= +5.0V
0
–40
–60
300
+70
+85
+100
NOTES: (1) Binary Two’s Complement coding. (2) The PCM1750 is tested and guaranteed at 5.2µs, however it will operate at 4.5µs. The dynamic performance is not
guaranteed or tested at this conversion rate. (3) Ratio of Signal
RMS
/ (Distortion
RMS
+ Noise
RMS
). (4) A/D converter sample frequency (4 x 48kHz; 4X oversampling per
channel). (5) A/D converter input frequency (signal level). (6) Referred to input signal level. (7) Ratio of (Distortion
RMS
+ Noise
RMS
) / Signal
RMS
. (8) Externally adjustable
to zero error. (9) Differential non-linearity error at bipolar major carry input code. Externally adjustable to zero error. (10) Full scale range (5.50V). (11) Refer to equivalent
circuit in Figure 1. (12) Worst case operating condition. Refer to typical performance curves.
®
PCM1750
2
PIN ASSIGNMENTS
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
DESCRIPTION
–5V Analog Supply Voltage
+5V Analog Supply Voltage
Serial Output (Left Channel)
External Clock Input
+5V Analog Supply Voltage
+5V Digital Voltage Supply
+5V Digital Voltage Supply
Digital Common Connection
Analog Common Connection
Digital Common Connection
Convert Command Input
Serial Output (Right Channel)
+5V Analog Supply Voltage
–5V Analog Supply Voltage
Offset Adjust (Right Channel)
MSB Adjust (Right Channel)
Analog Voltage Input (Right Channel;
±2.75V)
Reference Voltage Input (Right Channel)
Reference Voltage Output (Right Channel)
Analog Common Connection
Reference Voltage Decouple
Reference Common Connection
Analog Common Connection
Reference Voltage Output (Left Channel)
Reference Voltage Input (Left Channel)
Analog Voltage Input (Left Channel;
±2.75V)
MSB Adjust (Left Channel)
Offset Adjust (Left Channel)
MNEMONIC
–V
A
+V
A
SOUTL
CLK
+V
A
+V
D
+V
D
DCOM
ACOM
DCOM
CONVERT
SOUTR
+V
A
–V
A
OFF
ADJR
MSB
ADJR
V
INR
VREF
INR
VREF
OUTR
ACOM
VREF
CAP
RCOM
ACOM
VREF
OUTL
VREF
INL
V
INL
MSB
ADJL
OFF
ADJL
ABSOLUTE MAXIMUM RATINGS
Analog Input Voltage (V
IN
) .................................. –V
A
–0.3V to +V
A
+ 0.3V
+V
A
; +V
D
to ACOM/DCOM ............................................................ 0 to +7V
–V
A
to ACOM/DCOM .................................................................... 0 to –7V
–V
A
to +V
A
; +V
D
......................................................................... 0 to +14V
ACOM to DCOM ..................................................................................
±1V
Digital Inputs (pins 4, 11) to DCOM ........................... –0.3V to +V
D
+ 0.3V
Power Dissipation .......................................................................... 400mW
Lead Temperature, (soldering 10s) ................................................ +300°C
Max Junction Temperature .............................................................. 165°C
NOTE: Stresses above those listed under Absolute Maximum Ratings may
cause permanent damage to the device. Exposure to absolute maximum
conditions for extended periods may affect device reliability.
PACKAGE INFORMATION
MODEL
PCM1750P
PCM1750U
PACKAGE
28-Pin Plastic DIP
28-Pin Plastic SOIC
PACKAGE DRAWING
NUMBER
(1)
215
217
NOTE: (1) For detailed drawing and dimension table, please see end of data
sheet, or Appendix D of Burr-Brown IC Data Book.
TYPICAL PERFORMANCE CURVES
At 25°C, and
±V
A
=
±5.0V;
+V
D
= +5V, unless otherwise noted. Where relevant, specifications apply to both left and right input output channels.
THD+N vs FREQUENCY
(With 4X Digital Filter)
–20
V
IN
= –60dB
–40
THD+N (dB)
–40
–20
THD+N vs FREQUENCY
(Without 4X Digital Filter)
V
IN
= –60dB
THD+N (dB)
V
IN
= –40dB
–60
V
IN
= –20dB
–80
V
IN
= 0dB
–100
0
4
8
12
Frequency (kHz)
16
20
24
V
IN
= –40dB
–60
V
IN
= –20dB
V
IN
= 0dB
–80
–100
0
20
40
60
80
100
Frequency (kHz)
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.
®
3
PCM1750
TYPICAL PERFORMANCE CURVES
(CONT)
At 25°C, and
±V
A
=
±5.0V;
+V
D
= +5.0V, unless otherwise noted. Where relevant, specifications apply to both left and right input-output channels.
THD vs FREQUENCY
(With 4X Digital Filter)
–70
–70
THD vs FREQUENCY
(Without 4X Digital Filter)
–80
THD (dB)
THD (dB)
–80
V
IN
= 0dB
–90
V
IN
= 0dB
–90
–100
–100
–110
0
4
8
12
Frequency (kHz)
16
20
24
–110
0
20
40
60
80
100
Frequency (kHz)
PSR vs FREQUENCY
(–5V SUPPLY)
1
1
PSR vs FREQUENCY
(+5V SUPPLIES)
0.1
0.1
% of V
IN
/% of V
SUPPLY
%/%
%/%
0.01
% of V
IN
/% of V
SUPPLY
0.001
0.01
At BPZ:
% of FSR / % of V
SUPPLY
At BPZ:
% of FSR / % of V
SUPPLY
0.001
0.0001
1
10
100
1k
Frequency (Hz)
10k
100k
1M
0.0001
1
10
100
1k
Frequency (Hz)
10k
100k
1M
V
REF
vs TEMPERATURE
(V
REF
Outputs)
2.80
0
–25
Amplitude (dB)
FFT 850Hz (24kHz BW; 2048 POINTS)
2.78
–50
–75
–100
–125
–150
V
REF
(V)
2.76
2.74
2.72
2.70
–40
–20
0
20
40
60
80
100
Temperature in °C
0
5
10
15
20
24
Frequency (kHz)
®
PCM1750
4
TYPICAL PERFORMANCE CURVES
(CONT)
At 25°C, and
±V
A
; +V
D
=
±5V,
unless otherwise noted. Where relevant, specifications apply to both left and right input-output channels.
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