ESS ES2898S, ES2828S Datasheet
ES2898/ES2828
V.90 PCI DSP Modem Solution
ESS Technology, Inc.
DESCRIPTION
The ESS Technology ES2898/ES2828 TeleDrive® chipset
is a highly integrated solution that brings advanced
modem functionality to notebooks, desktops, and add-incards. The ES2898/ES2828 chipset provides an efficient
56k (V.90) data/fax solution and adds both a telephone
answering machine (TAM) feature and a full-duplex
speakerphone feature.
The data pump algorithms run on the ES2898 DSP, along
with the echo cancellation required for implementing a fullduplex speakerphone feature. The host CPU is utilized to
run the modem controller functions, including the standard
AT command set, V.42bis data compression features,
Classes 1 and 2 fax, and ITU-T V.80 sync access to
support H.324 video conferencing applications. The
ES2898 DSP offers an integrated PCI bus interface.
The ES2828 is the companion analog-front-end (AFE)
chip to the ES2898. It integrates a low-pass, continuoustime anti-aliasing filter, a 16-bit resolution ADC, a 16-bit
DAC, a low-pass output-reconstruction filter, and a CHI
bus interface to interface to the ES2898. The ES2828
includes two signal processing channels that operate
synchronously so that data reception at the ADC channel
and data transmission from the DAC channel occur during
the same time interval. The ES2828 also incorporates an
AC-Link to interface to core logic chipsets to provide a
standalone MC‘97 host-based V.90/V.92 modem solution.
The ES2898 DSP is available in an industry-standard 100pin low-profile quad flat pack (LQFP) package. The
ES2828 is available in an industry-standard 48-pin lowprofile quad flat pack (LQFP) package.
Product Brief
MODEM FEATURES
• Data mode capabilities:
—– V.90 56 kbps
—– V.34 33.6 kbps and fallbacks
—– Standard AT command set
—– V.42 (LAPM) and MNP error correction
—– V.42bis/MNP 5 data compression
—– 3.3V power supply, 5V input tolerant
• Fax mode capabilities:
—– ITU-T V.17, V.21 ch2, V.27ter, and V.29
—– Group 3 (TIA/EIA 578 Class 1 and Class 2)
• Telephony capabilities:
—– Telephone answering machine
—– Full duplex speakerphone
—– Caller ID
• Sigma-delta modulation codec
• Programmable downsampling frequency for modem and
voice applications
• ACPI power management support
• TIES escape sequence
• V.80 (H.324 software stack compatible)
• Fully ACPI-compliant
• Microsoft Windows 98/SE/ME/2000:
—– UNIMODEM V
—– TAPI
• Microsoft Windows NT 4.0
SYSTEM BLOCK DIAGRAM
Figure 1 Shows the ES2898/ES2828 system block
diagram.
CHI BUS I/F
PCI BUS
INTERFACE
ESS Technology, Inc. SAM0402-050301 1
ES2898
TeleDrive
Figure 1 ES2898/ES2828 System Block Diagram
4
ES2828
Modem AFE
DAA
18.816 MHz
PINOUT
Figure 2 shows the ES2898 and ES2828 pinout diagrams.
SCLK1
RFS1
TFS1
DR1
DT1
GND
SCLK0
RFS0
TFS0
DR0
75747372717069686766656463626160595857565554535251
DT0
VDD
TEST/PF9
RING_IN
VAUX
PME#
VAUXP
VDD
PCI CLK
VDD
INTA
PAR
RST#
FRAME#
GND
IRDY#
STOP#
VDD
DAA_PM
TRDY#
IDSEL
DEVSEL#
AD31
AD30
AD29
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
1
2345678
ES2898S
100-Pin LQFP
9
101112131415161718192021222324
ES2898/ES2828 PRODUCT BRIEF
PINOUT
BSEL0
SEDO
NC
NC
NC
PF7
VDD(5V)
PF3
PF4
PF5
PF6
FL2
PF0
PF1
PF2
50
FL1
49
FL0
48
VDD
47
GND
46
VDD
45
BSEL1
44
CLKOUT
43
XTALO
42
XTALI
41
GND
40
AD0
39
AD1
38
AD2
37
AD3
36
AD4
35
AD5
34
AD6
33
AD7
32
CBE0#
31
CBE1#
30
AD8
29
AD9
28
AD10
27
AD11
26
AD12
25
VAUX
GPIO_0
GPIO_1
GPIO_2
GPIO_3
GPIO_4
GPIO_5
DGND
GPIO_6
GPIO_7
GPIO_8
GPIO_9
NC
VDD
VDD
AD28
S D ATA_I N
ID0
P W DN#
ID1
RST#
36 35 34 33 32 31 30 29 27 2628
37
38
39
40
41
42
43
44
45
46
47
48
1
ES2828S
48-PIN LQFP
2 3 4 5 6 7 8 9 10 11 12
DPBX
DVDD
A G ND
A G ND
CBE3#
X T ALI
X T ALO
DVDD
CKOFSS C
A U X-
AUX+
A G ND
RXIN+
VDD
GND
AD16
AD17
AD18
AD19
AD20
AD21
AD22
AD23
AD24
AD25
AD26
AD27
GND
GND
AD13
AD14
AD15
CBE2#
S O
25
24
SI
23
DVDD
22
CTST
DGND
21
20
HCT
VCMX
19
18
AGND
17
TX-
16
TX+
VRBP
15
VREF
14
VCBP
13
V C M
A V DD
RXIN-
A C LIN K/ GPIO_ B
Figure 2 ES2898 and ES2828 Pinout Diagrams
2 SAM0402-050301 ESS Technology, Inc.
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