AD1857JRS-AD1858JRS Fast Delivery |IC PHOENIX CO.,LIMITED

AD1857JRS ,Stereo, Single Supply 16-, 18- and 20-Bit Sigma-Delta DACsspecifications).Values in bold typeface are tested, all others are guaranteed, not tested.ANALOG PE ..
AD1858JRS ,Stereo, Single Supply 16-, 18- and 20-Bit Sigma-Delta DACsSPECIFICATIONSTEST CONDITIONS UNLESS OTHERWISE NOTEDSupply Voltages (AV , DV ) +5.0 VDD DDAmbient T ..
AD1859JR ,Stereo, Single-Supply 18-Bit Integrated DACspecifications).Attenuation setting is 0 dB.Values in bold typeface are tested; all others are guar ..
AD1859JRS ,Stereo, Single-Supply 18-Bit Integrated DACSPECIFICATIONSTEST CONDITIONS UNLESS OTHERWISE NOTEDSupply Voltages (AV , DV ) +5.0 VDD DDAmbient T ..
AD1859JRS-REEL ,Stereo, Single-Supply 18-Bit Integrated (Sigma Delta) DACspecifications).Attenuation setting is 0 dB.Values in bold typeface are tested; all others are guar ..
AD1861 ,16-Bit/18-Bit, 16 3 FS PCM Audio DACspecifications of THD+N and signal-to-noise ratioThe AD1851/AD1861 is a monolithic PCM audio DAC. T ..
AD8315ARM ,50 dB GSM PA ControllerSPECIFICATIONSSParameter Conditions Min Typ Max UnitOVERALL FUNCTION1Frequency Range To Meet All
AD8315ARM. ,50 dB GSM PA ControllerAPPLICATIONSmV above ground to within 200 mV below the supply voltage.Single, Dual, and Triple Band ..
AD8315ARM-REEL ,50 dB GSM PA ControllerSpecifications subject to change without notice.–2– REV. BAD8315Table I. Typical
AD8315ARM-REEL7 ,50 dB GSM PA ControllerSpecifications at Selected Frequencies at 25C (Mean and Sigma) 1 dB Dynamic RangeSlope – mV/dB In ..
AD8315ARMZ , 50 dB GSM PA Controller
AD8315ARMZ , 50 dB GSM PA Controller

AD1857JRS-AD1858JRS
Stereo, Single Supply 16-, 18- and 20-Bit Sigma-Delta DACs
REV.0
Stereo, Single Supply
16-, 18- and 20-Bit Sigma-Delta DACs
FUNCTIONAL BLOCK DIAGRAM
PRODUCT OVERVIEW
The AD1857/AD1858 are complete single-chip stereo digital
audio playback components. They each comprise an advanced
digital interpolation filter, a revolutionary “linearity-compensated”
multibit sigma-delta (∑Δ) modulator with dither, a jitter-tolerant
DAC, switched capacitor and continuous time analog filters and
analog output drive circuitry. Other features include digital
de-emphasis processing and mute. The AD1857/AD1858
support continuously variable sample rates with essentially
linear phase response, and support 50/15 μs digital de-emphasis
intended for “Redbook” 44.1 kHz sample frequency playback
from Compact Discs. The user must provide a master clock that
is synchronous with the left/right clock at 256 or 384 times the
intended sample frequency.
The AD1857/AD1858 have a simple but very flexible serial data
input port that allows for glueless interconnection to a variety of
ADCs, DSP chips, AES/EBU receivers and sample rate con-
verters. The AD1857 serial data input port can be configured
in either 16-bit, 18-bit or 20-bit left-justified or I2S-justified
modes. The AD1858 serial data input port can be configured in
either 16-bit right-justified or DSP serial port compatible modes.
The AD1857/AD1858 accept serial audio data in MSB first,
twos-complement format. A power-down mode is offered to
minimize power consumption when the device is inactive. The
AD1857/AD1858 operate from a single +5V power supply.
They are fabricated on a single monolithic integrated circuit and
housed in 20-pin SSOP packages for operation over the
temperature range 0°C to +70°C.
FEATURES
Low Cost, High Performance Stereo DACs
128 Times Oversampling Interpolation Filter
Multibit SD Modulator with Triangular PDF Dither
Discrete Time and Continuous Time Analog
Reconstruction Filters
Extremely Low Out-of-Band Energy
Buffered Outputs with 2 kV Output Load Drive
94 dB Dynamic Range, –90 dB THD+N Performance
Digital De-emphasis and Mute
60.18C Maximum Phase Linearity Deviation
Continuously Variable Sample Rate Support
Power-Down Mode
16-, 18- and 20-Bit I2S-Justified, Left-Justified Modes
Offered on AD1857
Accepts 24-Bit Word
16-Bit Right-Justified and DSP Serial Port Modes
Offered on AD1858
Single +5V Supply
20-Pin SSOP Package
APPLICATIONS
Digital Cable TV and Direct Broadcast Satellite Set-Top
Decoder Boxes
Video Laser Disk, Video CD and CD-I Players
High Definition Televisions, Digital Audio Broadcast
Receivers
CD, CD-R, DAT, DCC and MD Players
Digital Audio Workstations, Computer Multimedia
Products
ANALOG
SUPPLY
DIGITAL
SUPPLY
16-/18-/20-BIT
DIGITAL
DATA INPUT
MUTE
CLOCK
MODE
CLOCK
SERIAL
MODE
COMMON
MODE
DE-EMPHASISPOWER-DOWN/RESET
TEST CONDITIONS UNLESS OTHERWISE NOTED
Supply Voltages (AVDD, DVDD)+5.0 V
Ambient Temperature25°C
Input Clock (FMCLK)11.2896 MHz (256 × FS Mode)
Input Signal1.0013 kHz
–0.5 dB Full Scale
Input Sample Rate44.1 kHz
Measurement Bandwidth20 Hz to 20 kHz
AD1857 Input Data Wordwidth18 Bits
AD1858 Input Data Wordwidth16 Bits
Load Capacitance100 pF
Load Impedance47 kΩ
Input Voltage HI (VIH)2.4 V
Input Voltage LO (VIL)0.8 V2S-Justified Mode (Ref. Figure 7) for AD1857, Right-Justified Mode (Ref. Figure 8) for AD1858.
Performance of the right and left channels are identical (exclusive of the Interchannel Gain Mismatch and Interchannel Phase Deviation specifications).
Values in bold typeface are tested, all others are guaranteed, not tested.
ANALOG PERFORMANCE
DIGITAL I/O
AD1857/AD1858–SPECIFICATIONS
DIGITAL TIMING (Guaranteed over 0°C to +70°C, AVDD = DVDD = +5.0 V ± 5%)
tDBL
tDBP
tDLS
tDLH
tDDS
tDDH
tPDRP
POWER
TEMPERATURE RANGE
ABSOLUTE MAXIMUM RATINGS*
AVDD to AGND
AGND to DGND
Reference Voltage
Soldering
AD1857/AD1858
AD1857/AD1858
PACKAGE CHARACTERISTICS
DIGITAL FILTER CHARACTERISTICS
44.1 kHz FS
32 kHz FS
Other FS
ANALOG FILTER CHARACTERISTICS
NOTESStopband nominally repeats itself at multiples of 128 × FS, where FS is the input word rate. Thus the digital filter will attenuate to 62 dB across the frequency
spectrum, except for a range ±0.55 × FS wide at multiples of 128 × FS.
Specifications subject to change without notice.
PIN CONFIGURATIONORDERING GUIDE
*RS = Shrink Small Outline
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000V readily
accumulate on the human body and test equipment and can discharge without detection. Although
the AD1857/AD1858 feature proprietary ESD protection circuitry, permanent damage may occur on
NC = NO CONNECT
MCLK
DVDD
LRCLK
BCLK
SDATA
PD/RST
MODE
AVDD
MUTE
DGNDDEEMP
384/256
AVDD
OUTL
AGND
CMOUTFILT
AGND
OUTR
PIN LIST
Digital Audio Serial Input Interfaces
MODE
Control and Clock Signals
DEEMP
MUTE
MCLK
Analog Signals
Power Supply Connections and Miscellaneous
AGND
DVDD
DGND
AD1857/AD1858
DEFINITIONS
Dynamic Range
The ratio of a full-scale output signal to the integrated output
noise in the passband (0kHz to 20 kHz), expressed in decibels
(dB). Dynamic range is measured with a –60 dB input signal
and is equal to (S/[THD+N]) + 60 dB. Note that spurious
harmonics are below the noise with a –60 dB input, so the noise
level establishes the dynamic range. This measurement tech-
nique is consistent with the recommendations of the Audio
Engineering Society (AES17-1991) and the Electronic Industries
Association of Japan (EIAJ CP-307).
Total Harmonic Distortion + Noise (THD+N)
The ratio of the root-mean-square (rms) value of a full-scale
fundamental input signal to the rms sum of all other spectral
components in the passband, expressed in decibels (dB) and
as a percentage.
Passband
The region of the frequency spectrum unaffected by the
attenuation of the digital interpolation filter.
Passband Ripple
The peak-to-peak variation in amplitude response from equal-
amplitude input signal frequencies within the passband,
expressed in decibels.
Stopband
The region of the frequency spectrum attenuated by the digital
interpolation filter to the degree specified by “stopband
attenuation.”
Gain Error
With a near full-scale input, the ratio of actual output to
expected output, expressed as a percentage.
Interchannel Gain Mismatch
With identical near full-scale inputs, the ratio of outputs of the
two stereo channels, expressed in decibels.
Gain Drift
Change in response to a near full-scale input with a change in
temperature, expressed as parts-per-million (ppm) per °C.
Crosstalk (EIAJ Method)
Ratio of response on one channel with a zero input, to a full-
scale 1 kHz sine-wave input on the other channel, expressed in
decibels.
Interchannel Phase Deviation
Difference in output sampling times between stereo channels,
expressed as a phase difference in degrees between 1 kHz
inputs.
Power Supply Rejection
With zero input, signal present at the output when a 300 mV
p-p signal is applied to power supply pins, expressed in decibels
of full scale.
Group Delay
Intuitively, the time interval required for an input pulse to
appear at the converter’s output, expressed in seconds(s). More
precisely, the derivative of radian phase with respect to radian
frequency at a given frequency.
Group Delay Variation
The difference in group delays at different input frequencies.
Specified as the difference between the largest and the smallest
group delays in passband, expressed in microseconds (μs).
De-Emphasis Gain Error
A measure, expressed in decibels, of the difference between the
ideal 50/15μs de-emphasis filter response, and the actual 50/15μs
de-emphasis filter response.
Typical Performance Characteristics
Figures 1 through 4 illustrate the typical performance of the
AD1857/AD1858 as measured by an Audio Precision System
Two. Signal-to-Noise (dynamic range) THD+N performance is
shown under a range of conditions. Figure 5 shows the power
supply rejection performance of the AD1857/AD1858. The
channel separation performance of the AD1857/AD1858 is
shown in Figure 6. The digital filter transfer function is shown
in Figure 7.
kHz
dBr A
–110
Figure 1.1kHz Tone at –0.5dBFS
kHz
dBr A
–110
Figure 2.1kHz Tone at –10dBFS
kHz
dBr A
–110
Figure 3.THD+N vs. Frequency at –0.5 dBFS
dBFS
dBr A
–110
Figure 4.THD+N vs. Amplitude at 1 kHz
AD1857/AD1858
Typical Performance Characteristics (continued)
kHz
dBr A
dBr B
Figure 5.Power Supply Rejection to 300 mV p-p on AVDD
kHz
dBr A
–110
Figure 6.Channel Separation vs. Frequency at –0.5 dBFS
dBFS
Figure 7.Digital Filter Signal Transfer Function to 3.5 3 FS

Partno	Mfg	Dc	Qty	Available	Descript
AD1857JRS	AD	N/a	2330	avai	Stereo, Single Supply 16-, 18- and 20-Bit Sigma-Delta DACs
AD1858JRS	AD ?	N/a	66	avai	Stereo, Single Supply 16-, 18- and 20-Bit Sigma-Delta DACs